Its a whole new sensation!.Ergonomically designed masturbator with 120 non-jamming beads that rotate under a textured Silicone sleeve for the ultimate in male satisfaction.7 powerful functions of reversible rotation.Independent 5-speed control with easy on/off button.Easy to clean.EZ load battery pack.Silicone (sleeve) ABS (cylinder, buttons, handle, dcor ring), PMMA (beads).4 AA batteries.4.5x 2/ 5 cm x 11.5 cm (sleeve).10.5x 3.5/ 27 cm x 9 cm (overall).