The NRS 5in Barrel Pump provides you with the five inches (width) of air-filled funk you need to get down to business on the liquid dance floor. And quickly ... because the weak, under-performance inflation that your previous pump spewed out nearly got you killed when the s*&^ hit the fan in Cataract Canyon. Commercial outfitters and lifetime ducky, SUP, and raft paddlers trust reliability and the pumping power of the NRS Barrel Pump.