Prevue Pet Products Woodpecker 62821 is made from 100% natural, sustainable, materials providing your bird with mental stimulation and rugged physical play. Made with Java Wood and Sisal Rope this toy will keep your bird interested for hours while encouraging beak exercise. Toy connects easily to cage with stainless steel wire twist-link attachments and actual measurements may vary slightly. As always, supervise birds at play. Our Woodpecker bird toy measures 3 in diameter and 6 1/4 high ( 12 high with chain and link) Ideal for medium, large and x-large birds measuring 18 to 40+ beak to tail, and sugar gliders.