Materials: Sports water bottle with attached carabiner ring, 4″ spring snap carabiner. We ordered this specific bottle from Amazon: BOTTLED JOY Sports Water Bottle with Carabiner Ring, Flip-top BPA-Free Wide Mouth Tritan 28 oz Sports Bottle
Assembly instructions: Attach the 4″ carabiner to the carabiner ring. We also removed the flip top cap (optional),
How to use: Add treats in the bottle that will fit out the hole in the cap. To increase the difficulty, add shredded paper! Hang on the outside of the caging using the carabiner.
Price: Approximately $14 per puzzle