The 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. As with all products and/or materials at Blush it has been 3rd party lab tested to meet or exceed REACH and Prop65 safety compliance directives. It's your body. Be mindful of what you put in it.