BUILT FOR MODERATE CHEWERS Our best-selling customizable puzzle and treat toy is designed to be filled with a dog's favorite kibble or treats. Toppl's soft, rounded inner 'teeth' contain a contoured cavity to hold treats in place until your dog nudges them out. To change up the challenge, simply connect the XL and Large or Small and Large together. - Treat dispensing puzzle toy helps stimulate dogs’ brains to support healthy growth - For enhanced challenge interlock SM+L or L+XL together - Pairs well with nut butters, creamy treats, cheese chunks, smashed banana, dog biscuits, and more. - Freeze wet treats for long lasting play - Non Toxic & Dishwasher Safe - Made with zero-waste and recyclable Zogoflex material in Bozeman, Montana - Backed by our Love it Guarantee™ - Recyclable through our Join the Loop® recycling program Small: 2.5" x 3" x 3" / 6cm x 8cm x 8cm