Jack It Duo - Sky BlueWith its silky soft clear exterior, and liquid like colored interior, there has never been a stroker like the Duo. Add a drop of lube to the colored, textured channel, and the sensation is absolutely mind boggling. Whats more, its ample size is meant to fit a mans hand, and its exterior grip provides no slip, non stop pleasure. Its revolutionary design instantly transmits additional sensation with every flex of your hand. Into strokers? You dont know