Pets can have trouble swallowing pills. This product crushes pills into a powder that can be put into food or milk, thus making the medication palatable. Pills can be stored in the cap. Do not use to crush pills for humans after using for animals. Unscrew cap from clear base. Place pill in deep well of clear base, screw cap back onto clear base, crushing pill.. Dimensions are 3.5 X 3 X 6 UPC Code = 723754613004