Made of firm but flexible Crystalessence Material, Jessica Drake's Glittered Probe measures 5.25in x .625in diameter at tapered tip and 1.25in diameter at the largest bead. It features multi-speed vibrations and a sturdy suction cup with which to mount this probe on almost any flat smooth surface. Two AA batteries, not included, provide the robust vibrations. Its texture is vertically ribbed on each bead. This toy comes highly recommended by Jessica Drake!