2 Replacement O-ring for Hand pump for inflatable SUP airSUP stand up paddleboard ultra high pressure Heavy Duty Easy Inflate NEW O-rings 2 pack 2 Replacement O-ring for Bravo Hand Pump for inflatable SUP printed how to install guide included (note: the pump is NOT included, these are o-rings !) fits Bravo SUP Pump HP (usually yellow color plastic barrel) also may fit other brands, but not tested, only one is needed ; keep the 2nd as a spare this is the NEW central o-ring to make pumping easier!