uxcell Plastic Shell Battery Powered Fish Bowl Air Pump, Black Product Name : Air Pump for Fish Tank Aquarium; Application : Fish Aquarium Powered By : 2 x Size D DC 1.5V Batteries (Not Included Here); Air Stone Size : 2.3 x 2cm0.9" x 0.8" (D*H) Tube Length : 53cm20.9"; Size : 13 x 7 x 4cm/5.1" x 2.8" x 1.6"(L*W*H) Material : Plastic, Electric Parts; Color : Black Net Weight : 187g; Package Content : 1 x Air Pump1 x Air Stone