The M for Men Soft & Wet cup is loaded with fun! Insided are stimulating nubs.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. Measures 7.25" Length by 3.25" width. Considerably larger than most other similar products on the market.The Self Lubricating technology is built into the actual material TPE.  The component is proprietary and is body safe.  The user adds water and this will activate the self lubrication.  The self lubrication feature lasts about 10 times, (more or less) depending on how vigorous the user is with the toy. After that, the self lubrication will wear off and they can use their own water based BOO lube.Self-lubricating, slippery when wet, just add a little water and slide inEnjoy the erotic sensations as the nubs massage your shaftMild suction is manually activated by manipulating air valve, a nut busting experienceSqueeze the center of the cup to tighten and enhance your pleasureBuilt for real men this stroker measures 7.25" length x 3.25" width, it is as much as 20% larger than comparable masturbators on the marketLength: 7.25 inches / 18,4 cmWidth: 3.25 inches / 8,2 cm