It is a Pipette Dropper. Help to keep your fish tank clean. Made of premium material for durable and practical use. Suitable for office mini tank, pumping water, also suitable for the treatment of fish disease in a large fish tank, put liquid fish medicine into the tank, accurate and practical._x005F_x000D__x005F_x000D_Features_x005F_x000D__x005F_x000D_- Color: Assorted Color_x005F_x000D_- Size: About 30x5x5xcm_x005F_x000D_- Material: Plastic_x005F_x000D_- The maximum water absorption is 30ML_x005F_x000D_- The scale is divided into four grades :10ML, 15ML, 20ML and 30ML._x005F_x000D_- Remove sediment from the bottom of the mini fish tank. Help to keep your fish tank clean._x005F_x000D_- Also use to directly feed coral or anemones._x005F_x000D_- Made of premium material for durable and practical use._x005F_x000D_- Perfect for stirring up waste in the bottom of the tank and sucking it up._x005F_x000D_- Warm Tip: Dear buyer, due to lighting effect, monitor& 39;s brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand Thank you Packing list:2 x aquarium pipette