The M for Men Soft & Wet cup is loaded with fun! This pocket stroker is Self-Lubricating. Add a little water or saliva and everything gets slippery. Just like the real thing! Squeeze the cup and open or close the air valve for more suction and pleasure. M for Men masturbators are soft, flexible, and filled with sensational textures. Self lubricating properties are temporary. It will last up to 12 uses. To clean, wash with soap and water. Pat dry and allow to air dry before storing. Use product only with water based lubricants. It is recommended to start using water based lubricants after self lubricating properties begin to diminish.