Get your pecker pumping! Longer and stronger power-training with YT2 3 Sleeve System Penis Pump installed with a security valve. 3 sleeve s of varying diameters. Made of ABS (pump, handle), TPE (sleeve), PVC (hose). Tube size: approx. 32 cm. Insertion depth: approx. 29 cm. 3 sleeves included: 2.5, 3 and 3.5 cm.