Halloween-inspired, natural rubber fillable toy provides a mentally-stimulating challenge to keep dogs busy. Made of natural rubber and is safe and durable for most moderate chewers. Fill the opening with your dog's favorites and let them work for it. Filling ideas: treats, kibble, wet food, peanut butter. Naturally bouncy, so you can toss them for even more playtime fun. Manufactured in the USA with global materials. 4 x 4 inches.