Best-selling, viral puzzle toy that stimulate dogs' brains to support healthy growth. Fill with wet treats and freeze for long lasting challenge. Interlock SM+L or L+XL together for a treat dispensing puzzle toy your dog can chase. Doubles as a slow feeder for wobbly, scatter feeding enrichment. Features Top-rack dishwasher safe Safe and Non-Toxic. Absolutely no BPA, Latex, Phthalates, or Silicone Made with zero-waste and recyclable Zogoflex(R) material in Bozeman, Montana Backed by our Love it Guarantee(TM) Recyclable through our Join the Loop(R) recycling program Mental Enrichment Top Rack Dishwasher Safe BPA, Latex, Silicone & Phthalate Free Infinitely Recyclable Made in America Specs Small: 2.5" x 3" x 3" / 6cm x 8cm x 8cm Large: 3.5" x 4" x 3.5" / 9cm x 10cm x9cm XL: 3.75" x 4.75" x 4.75" / 10cm x 12cm x 12cm Additional Details: Please remember your dog's safety is your responsibility. No dog toy is indestructible. Choose only toys that are the appropriate shape and size for your dog and always supervise your dog's use of this toy. If damage occurs, please discontinue use of the toy immediately.