Zanies Stack N Play Lion Foster Puppy Development With Our Zanies® Stack 'N Play Lions Encourage the critical stage of puppy development with our innovative Zanies Stack 'N Play Lions. Interactive features aid in a puppy's learning and growth stage and help introduce puppies to new shapes, colors, and textures. Stacker includes a clown lion and three plush rings that all stack on a giggling plush tube. Each ring features a new texture, shape, or sound, to help puppies adapt to their surroundings. Measures 15 1/2" tall.