The Tentacle: Knot

Sale price£45
Size: X-Small
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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.

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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.


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.




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


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


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


  • 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

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Customer Reviews

Based on 23 reviews
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.

5 stars!

Got this after being so pleased with my tentacle grinder, and this was another hit. The quality is top notch and it feels awesome. It’s also stunning to look at. Got it in medium size, color fade with white and neon pink, with candy store base, super soft firmness and a cum tube. Only thing I would do different in the future would be to abstain from the cum tube because I don’t think I’ll use it much, and potentially drop the third base color, but there was an offer on free modification and I couldn’t help myself. But this is in no way a reflection on the product and is only related to my personal tastes. The product is superb!