Featuring classic styling complete with a simple, easy to manage squeeze ball valve, Mojo's Zero Gravity Pump is more than up to the challenge of maximizing your powers of satisfaction. Nice and steady at the sturdy calibrated (in inches and centimeters for you metric folks) cylinder, the Zero Gravity is comfortable in hand and covers your cock fully. A soft silicone donut sleeve around the mouth protects and cushions skin - it also works to ensure a super-snug air tight seal. In body safe ABS plastic and silicone materials, the Zero Gravity Pump cleans easily using warm soapy water or a good toy care fluid/foam. Compatible with any favorite water-based lube. The Zero Gravity is approximately 8.5" (22cm) insertable and 2.5" (6.4cm) in diameter .