Includes two Twin Spin electric toothbrushes
Twin oscillating heads
Removable brush head
Each measures approximately 8-1/2"L x 1-1/4"W x 1-3/4"D
Each requires two AA batteries, included
This is a great toothbrush to use on dogs teeth.. will work on small and large dogs.. I use to use them on my Chihuahua's teeth.