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Can't find the hole?
No worries Prnt3d Bottle Nips got you covered.
No more struggling to put your tube in its place. Prnt3d Bottle Nips allow you to slide your tube on every time.
Simply slip it over your bottle tube, push your bottle inside the hole and wallah, you're in!
Designed to keep your tube firm when inserting.
Fits 4mm silicone tubing (ex: MM Dinky/BANGR V2 Silicone Tubing)