The M for Men All Nighter is loaded with fun! This stroker is self-lubricating. Add a little water or saliva, and everything gets slippery. It also glows blue in the dark making it easy to see at night. The All Nighter has a soft erotic feel for sensational stroking and a ribbed inside for pressure point massage and pleasure. Super-soft and flexible, the All Nighter will fit any size shaft. Made of TPE: it is free of phthalates, fragrances, paraffins and latex. Self lubricating feature lasts up to 12 uses. After that you can add water based, hybrid or silicone lubricant