Containing a bulb and three pinch valves structure controlling influx and efflux of pipette contents. Using rubber materials, safe, light, durable for long servicing time. Easy to use, efficient one-handed operation-through three valves to control the air discharge, liquid absorption and liquid distribution, bring you much more convenience in laboratory experiment. Features - Color:Red.- Material:Rubber.- Size:12.00X5.00X5.00cm/4.72X1.97X1.97inch.- Capacity: 60ml.- This pipette bulb is with large suction force, not easy to crack, and the liquid is not easy to precipitate.- Efficient for one-handed operation, satisfy your demands of controlling air evacuation, uptake and dispensing liquids, etc.- Made of rubber materials, safe, flexible and durable to use for long time.- It is suitable for mining, agricultural research, food, chemistry laboratory, teaching, and so on.- With good elasticity and detailed workmanship, can better helps get air in and out to remove dust, grime.Packing list: 1 x Pipette Filler Bulb(60ml)