The Tentacle: Knot

Q: What are the different firmness options?

We offer 3 firmness options: Medium Firmness - 10A on the Shore hardness scale Soft Firmness - 5A on the Shore hardness scale. Super Soft Firmness - 0040 on the Shore hardness scale Squish Soft Firmness - 0020 on the Shore hardness scale For more information about our firmness options see our firmness guide .

£45

Size: X-Small

X-Small Small Medium Large

Discreet Shipping

We've got your back (and your front)! All our toys arrive in plain brown boxes because what happens in the bedroom, stays in the bedroom.

Free Returns

Not loving your new toy? No sweat! Return any unopened, unused product within 30 days—hassle-free and with zero awkward questions.

Platinum Silicone

Indulge in the best. Our platinum silicone is odorless, body-friendly, and lets you pick your ideal firmness.

Description

Based on our original Tentacle, the Swell has been designed for knot lovers. Its subtle tip, gentle curves, soft detailed suckers and a base are finished off with coral and sea-inspired details remain, but now there’s a gradual knot that will stretch and tease you until it pops inside.

Sizing

X-Small

Widest Point Circumference (Knot): 4.2" / 10.6cm
Base Circumference: 4.7" / 12cm
Insertable Length: 4.3" / 11cm
Total Length: 5.1" / 13cm

Small

Widest Point Circumference (Knot): 7.3" / 18.5cm
Base Circumference: 7.5" / 19cm
Insertable Length: 7.1" / 18cm
Total Length: 7.9" / 20cm

Medium

Widest Point Circumference (Knot): 8.7" / 22cm
Base Circumference: 9.1" / 23cm
Insertable Length: 8.7" / 22cm
Total Length: 9.8" / 25cm

Large

Widest Point Circumference (Knot): 9.3" / 23.5cm
Base Circumference: 9.6" / 24.5cm
Insertable Length: 10" / 25.5cm
Total Length: 11.6" / 29.5cm

Product FAQ

How does the cum tube upgrade work?

The Cum Tube Upgrade adds a silicone tube running along the entire length of the toy, connected to a syringe filled with liquid (water or lubricant). Apply pressure to the syringe, and voilà – the liquid expels through the toy's tip. A syringe is included, but you’ll need to purchase the lubricant separately.

What is the best knot dildo for beginners?

For those new to knot dildos, we recommend starting with our X-Small and Small sizes. These options are perfect for easing into the experience:

Dragon Knot - X-Small: With a 4.5" circumference knot, it's ideal for first-timers.
Knot II - X-Small: Also features a 4.5" circumference knot, providing a snug yet manageable fit.

For Intermediate Users:
If you're ready for a bit more intensity but prefer a shorter shaft, the Werewolf III X-Small is a great choice. It has a slightly larger 5.5" knot, so you can enjoy a bigger thrill without the extra length.

What is your biggest knot dildo?

In our current range, the two dildos with the largest knots are:

The Knot - Large: This beast packs a hefty 9.5" knot, perfect for those who want more.
The Werewolf - Large: For those who crave the ultimate challenge, this one features an incredible 10.6" knot.

Or see the full range of knot dildos here.

What are the different colour options?

We offer 6 different colour styles, though not all are available on every product.

Surprise Me Basic - Leave the decision in our capable hands and we'll choose a solid colour that compliments your toy selection.

Surprise Me Premium - Leave the decision to us and we'll get creative with two or more colours. We love this choice as it allows us to get experimental with all of our colours, often resulting in our best pours.

Solid - One colour that will run evenly throughout your toy

Fade - Two colours combined that are gradually blended together. Colour 1 will be the tip of your toy and Colour 2 will be the shaft and base.

Marble - Two colours combined resulting in a veining effect similar to classic marble.

UC Trademark - This is a product-specific colour. The main image of the product is the UC Trademark colour.

For more information, take a look at our colour guide.

What are the different firmness options?

We offer 3 firmness options:

Medium Firmness - 10A on the Shore hardness scale
Soft Firmness - 5A on the Shore hardness scale.
Super Soft Firmness - 0040 on the Shore hardness scale
Squish Soft Firmness - 0020 on the Shore hardness scale

For more information about our firmness options see our firmness guide.

Why do you only use platinum silicone?

We use platinum silicone so you get a toy that is non-pourous (meaning when you clean it, it gets fully clean and can't transmit bacteria), doesn't smell, is body safe and feels fantastic.

If you'd like to learn more about cleaning your toys, read our sex toy care guide.

What truly stands out and compels me to share my experience, however, is the outstanding customer service I received from Jade. She was not only professional and patient, she also went above and beyond, ensuring that my needs were not just met but exceeded. Encountering such dedicated service and unwavering patience is rare.

Thank you, Jade, for turning what could have been a complicated experience into a remarkably positive one!

High quality and super pretty

This is the first toy I've gotten from UC, and I can't wait to get more. It's beautiful and poured in very high quality silicon, and customer service was great.

Beautiful and well made

Very detailed pretty design, perfect texture and squish it also has a nice heft that makes it feel very sturdy!

I absolutely love it. It took less than 3 weeks for my order to be made and delivered, I think that's really good for a hand-made item. I ordered a mix of the glow-in-the-dark colors and they don't disappoint, they look really nice. I also really like the way it feels I love the super-soft material. All in all very happy and I will order again :D Thanks Ed for making such a great toy for me! It also came with a tiny version of the toy; got to love this seller. Finally, also the customer support is truly excellent! The toy that I got initially had a tiny imperfection and I promptly got a replacement without any hassle at all. It was a very pleasant experience.

Pretty good, colors kinda wack

Im reviewing purely based off how it looks when I got it. It got here in a few weeks after ordering which is cool. I accidentally chose the wrong address and tried to change it after ordering but they never saw my email, however it ended up working out so I can't really complain. The soft texture is nice, it's not hard but not floppy. I chose color fade (green tip to sea smoke) but it seems they were out of sea smoke as it's mostly green and the base is green, which isn't awful but not what I expected. There's also some little air bubbles in it but overall it seems good quality. I'd like to order again if i could be more sure of the colors I'm getting.