Superpet (Pets International) SSR60386 2-Pack Small Animal Lava Landing Chew, Colors Vary Lava landing enrichment accessory perch Made of pumice rock and is completely safe to chew while promoting clean and healthy teeth Easily attaches to any wire home; encourages natural jumping exercises Available in assorted color Measures 6-inch length by 2-3/5-inch width by 1-1/4-inch height