3rd Base Black

3rd Base Black

Automatic masturbator · TPE sleeve · Internal depth 8.9 cm · Single opening

This is where automation meets realism. 3rd Base Black combines a rotating inner mechanism with layered vibration — the rotation moves in a circular motion around the shaft while the sleeve pulses, creating a sensation closer to oral sex than a static stroker can deliver. The internal sleeve is soft and flexible, designed to grip and release with each rotation cycle. For users who want stimulation without having to manually stroke, this is a genuine hands-free option.

The Inside Feeling

The sleeve has a textured interior with raised ridges that follow the spiral of the rotation. As the motor spins, these ridges move across the surface in a continuous wave — tight at the entrance, slightly more generous deeper in. The combination of rotation and vibration creates a layered sensation: the rotation provides sweeping contact, while the vibration adds a tingling pulse beneath. There are 7 combined modes, each varying the rotation speed and vibration intensity. The sleeve is stretchy enough to accommodate different sizes but maintains enough tension to create friction without manual movement.

The Material

The sleeve is made from TPE — a soft, pliable elastomer that feels smooth to the touch but has enough drag to create friction. It's body-safe and phthalate-free, but it's porous, which means thorough cleaning and complete drying are non-negotiable. The sleeve sits inside a hard plastic housing with an ergonomic handle — this is where the motor is located. The exterior is matte black, discreet and easy to grip. The transparent cap protects the opening during storage and keeps dust out.

Size & Handling

Total length 25.4 cm, internal depth 8.9 cm, internal diameter 3 cm. The handle design means you hold it like a flashlight — it's not a two-handed grip, but it's not pocketable either. The weight (620 g) gives it a solid feel, but the motor does most of the work, so you're not actively stroking. USB-C rechargeable, so no need to hunt for batteries. Not waterproof — keep it away from the sink and shower.

Cleaning & Maintenance

Remove the sleeve from the housing after each use. Rinse it thoroughly with lukewarm water — turn it inside out if needed to reach the textured ridges. Never use soap or shower gel — these break down TPE and cause the material to become sticky and degraded. Pat dry with a lint-free towel, then allow it to air-dry completely before reassembling. If the sleeve starts to feel tacky, dust it lightly with cornstarch or a renewing powder (silicone-based powders work well for TPE). Store the sleeve inside the protective cap to keep it dust-free. The motor housing can be wiped down with a damp cloth — do not submerge it.

Lubricant

Water-based lubricant only. Silicone-based or oil-based lubricants will damage the TPE sleeve permanently. Apply generously to both the entrance and the interior — the rotation mechanism works best with a well-lubricated surface. Reapply as needed during use. We recommend Mshop Care Lube:IT — it's designed for toys and won't leave a sticky residue.