Are you going to do some watersports on the lake, river or beach, do not forget to take all the additional parts from the inflatables with you, especially the HO Sports Boston Valve 2 Pack. Many times you lose the excitement of a ride because of a broken or releasing air valve. These valves are easy to replace and are durable and reliable, it doesn t take much space, and it is a small package with two replacement valves just in case. The HO Sports Boston Valve 2 Pack is something to recommend to your friends who have towable tubes or other watersport toys that have Boston valves. Enjoy an excellent day on the water with your family and friends, playing with your inflatables, tubes and beach balls with brand new Boston valves.