Simply insert an empty water bottle with tight cap, Makes a loud "crunching" noise when dog bites down, Heavy duty ring makes it a real tug-o-war with your dog. Complies with CPSIA, Prop 65. 17.0" L x 2.5" W x 5.0" H. Price includes a 1 Colour Imprint. Imprint area is 9.0" W x 2.5" H on Either Side. Call for multi-colour or multi-location imprints or for rush delivery availability.