Our inflating needles are designed with a high quality steel for long lasting use anywhere Keep pumping air, ball after ball, with a pack of inflating needles that come by the dozen Our 12 pack of inflating needles are compatible with standard air pumps or electric air compressors Inflates basketballs, footballs, soccer balls, and volleyballs during sporting events and practice Each durable inflation needle has a preferred measurement of 1.75 inches in length