The 3687 Pk4 Spiky Monkeys are very interactive foot toys for your small to medium-sized pet bird. The 3687 comes with four spiky Monkeys in the pack, ready to be played with. The spiky Monkeys weigh 4 ounces together and measure about 2 inches long with a 1.5-inch height, but this will vary from Monkey to Monkey. The spiky Monkeys are made with soft bird safe plastic. The spiky Monkeys face and body all have lots of small shapes, making it easy and fun for your pet to play with them. Your pet is sure to love their lightweight , bright colors and easy to grab parts. The 3687 is made with 100% bird safe material.