Set includes: premium, solid silicone probe; powerful multi-speed stimulator; soft, tight and stretchy life-like masturbator with ultra-tight beaded entry; penis pump with flanged base for secure seal, superior suction and EZ-squeeze bulb with quick air release valve (body safe donut included); and set of two sturdy, stretchy all-purpose silicone rings. Probe measures 4.75 in. by 1 in. Masturbator measures 5 in. by 2.5 in. Cylinder measures 7.75 in. by 2.25 in. Medium ring diameter is 1.5 in., large ring 1.75 in. Stimulator requires 2 AAA batteries, not included.