Chew Proof Water Bottle Holder Chew Proof Holder Is Made Of High Grade Steel Construction With Epoxy Coated Finish Slides On To Any Wire Cages, Hangs On Any Aquarium Or Attaches To Wooden Walls With A Screw Totally Adjustable Hanger Features A Secure Spring Holder Measures 8-3/5-Length By 1-4/5-Inch Width Super Pet Water Bottle Holder - 16 Oz.This Is A Universal Fit Water Bottle Bracket. Its Chew-Proof Holder Is Made Of High-Grade Steel Construction With Epoxy-Coated Finish. It Slides On To Any Wire Cage, Hangs On Any Aquarium Or Attaches To Wooden Walls With A Screw. The Easy-To-Use, Totally Adjustable Hanger Features A Secure Spring Holder. This Size Will Hold Any Standard 16-Ounce. Water Bottle. The Actual Size Is 8.6" Long And 1.8" Wide. A Smaller Version That Holds 4- And 8-Ounce Bottles Is Also Available