Our Food Tumbler is a clear forager that is recommended for birds with intermediate to advanced-level foraging skills. The flower-like curves hold the treats you insert. Birds will spin the Food Tumbler so treats fall into the transparent tube at the bottom. Adjust the tube at the bottom of the tumbler so you can change the difficulty level of foraging for your feathered friend. Our Food Tumbler is made from durable polycarbonate to withstand active daily play. Attaches easily to the side of any birdcage.