If your birds love yucca but it’s destroyed in 10 minutes, try natural cork! Cork is a bit tougher than yucca with more texture, nooks, and interesting colors! There are approximately 6-8 chunks of natural cork per pound. Each chunk is approximately 4″ x 3″ and 1-3″ thick, but expect a lot of unique variation, especially in thickness! Great for cage-top play and foot toys!