This totally hands-free erection enhancer has a powerful wireless stimulator that vibrates the flickering tongue to drive her crazy! This jelly enhancer is soft, durable and sized to fit most men. The tongue is 1" long by 1 1/4" wide. Six batteries are included. Insert 3 watch batteries plus side up in the powerful vibrating, wireless stimulator. When the vibrations run low, you have 3 batteries to spare! The Clit Flicker is perfect for loving couples!