Poop-Off: 16oz with Brush Top. Bird Poop-Off is NONTOXIC and Biodegradable, Poop Off can be used when your birds are still inside their cages! Perfectly safe for humans! No gloves are required! The special plastic attached brush has a control head that limits the amount of liquid dispensed and breaks down bird droppings as it cleans. Clean perches in minutes with NO scraping! This product is a must have for all bird owners!