Orbee-Tuff® Nooks™ are a hole new ball for a hole new ball game! They are doggy-durable, bouncy, buoyant, minty. Each features a whimsical shape, perfect for stuffing with tiny treat bits, peanut butter, cheese, or any favorite stuffing. Freeze the NOOK filled with a yummy stuffing to create a doggy Popsicle! The NOOK can be put in the SNOOP to create double the puzzle fun!