FUN FACTORY IKU TIGHT Masturbator — Tight Sleeve

Think of the IKU TIGHT as a small, high-quality strokable sleeve that gives a noticeably snug sensation. The internal wave-like texture creates a changing pattern of pressure and release as you move, so it’s more than a simple smooth tube. At 2.2cm insertable diameter it sits on the tighter side compared with many sleeves — good if you prefer a close fit and more friction.

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How to use it

Place a good amount of water-based lubricant into the sleeve before use to protect the silicone and enhance glide — silicone lubricants can degrade the surface. The sleeve is designed for hand stimulation: grip and stroke at your preferred speed and pressure. The Magnetic Click System means you can attach or swap IKU components quickly if you have other IKU parts from FUN FACTORY.

Cleaning and care

The sleeve is removable so cleaning is straightforward: slide the liner out, rinse under warm water with a mild soap and allow to air dry completely before reassembly. Because the toy is silicone, avoid oil-based or silicone-based lubricants and harsh cleaners. IPX7 waterproofing means you can use and rinse it in the bath or shower, but always dry and store it away from direct heat and sharp objects to keep the silicone soft and lint-free.

Who it’s for: you, if you value a snug, tactile sleeve that’s easy to maintain and want the flexibility to customise with other IKU modules. Who it’s not for: if you need internal vibration or a motorised toy — this is a manual sleeve that relies on texture and fit rather than electronic power.

For someone wanting a snug, tactile silicone masturbator that’s easy to clean and modular.