The 2368 Wibbly Screw from Bonka Bird Toys is a great colorful experience for your bird. This foot toy will keep your feathered friend entertained for hours. A neon wibbly ball is screwed with colorful plastic nuts and bolts, providing a great foot/talon toy experience. This colorful wibbly ball foot toy is durable. It measures approximately 3 inches wide with a ball diameter of 1 inch.