This is the battery operated fountain that can be placed into any birdbath. An internal pump continuously recirculates water up through its base and projects 5"-high plumes into the air. The sound of trickling water attracts birds while the constant motion of the fountain eliminates standing water that could become a breeding ground for bacteria or insects. Built-in timer runs the fountain for 1-4 hours at the same time every day. Made from rugged UV-, fade-, and peel-resistant PVC plastic with a hand painted stone finish. Requires four D batteries. Stone. 13" H x 7" Diam. (5 lbs.)