See yourself in a whole new way. the innovative optix model joins doc johnson's main squeeze line of variable pressure hard shell masturbators and features a unique, fully transparent design so nothing can get in the way of fantasy. every part of optix, including the housing, adjustable pleasure features, and tight, textured ultraskyn love tunnel is crystal clear, providing an unmatched visually stimulating experience. as always, main squeeze is designed to put the power in your hands. with a squeezable handle to adjust the tightness at each push and with the end cap can adjust the suction. the double-layered hard shell design acts as a discreet travel and storage case, keeping optix as sleek and flawless as the day you opened it.