For Pups Who Have Mastered Levels 1-2 And Are Ready To Take On Sequential Step Learning.Great For Reducing Destructive Behavior In A Fun And Rewarding Way!Challenge Your Dog's Mind: Your Clever Pup Will Need To Do 3 Steps To Uncover The Treats In The Hidden Compartments Of The Dog Worker ToySwivel The Flippers, Scoot The Blocks, And Spin The Center Wheel.no Removable Parts: The Dog Worker Dog Puzzle Is Durably Designed With Built-In Play Pieces That Don'T Come Out When Your Dog Plays.bpa, Pvc & Phthalate Free: The Dog Worker Dog Toy Is Made From A Durable Composite Plastic And Wood Material That Is Bpa, Pvc, And Phthalate-Free.Easy To Clean With Warm Water And Mild Soap Between Uses.play It Safe: No Toy Is Indestructible.Do Not Leave Toys With Unsupervised Pets.Remove And Replace Toy If Damaged.