Insert your pen into this powerful, tight masturb''tor and let him do the rest. The inner chamber spins dozens of soft TPR nubs as it caresses your penis. It has 4 rotation speeds and 4 up and down modes for an intense sensation. Characteristics: Strong vibra''ons High stimulation 4 vibr''ion modes 4 rotation modes Up and down function 4 AAA batteries Ergonomic design manufactures high quality products. They have a 1 year warranty on technical defects.