【New】Petz Route Snack Study Cap Small 11mm Blue & Pink Set of 2 Just attach it to a bottle! A fun and delicious study toy♪ 【Product Description】 Simply close the cap on your pet bottle to transform it into a toy that allows for play and training at the same time! This is a small hole size that changes the difficulty of getting the snacks out. Easy to clean and very hygienic. 【Target】For dogs 【Target Size】For extra small and small dogs 【Material】POM 【Size】Width 38 x Height 32 x Depth 32 (approx. mm) 【Caution】Some pet bottles cannot be attached due to differences in the diameter of the opening.