Product detail: Weight: 1.5g each piece Pump Needles Material: stainless steel Outside Diameter: 7 mm Inside Diameter: 4 mm Length: Approx. 38 mm Universal Size for pump: Universal fit for standard hand pump, ball pump, bike pump, gauges as well as most foot pumps! Widely Use: For footballs, basketballs, soccer balls, volleyballs, yoga ball; Kids’ play toy balls, Inflatable toys, Swimming ring; Huge air inflated toy, rubber dinghy, air mattress; And virtually any sports equipment or play toys that require inflation needles. Warm notice: Please keep away from children to avoid choking. Package Including: 35PCS * Ball pump needle 1pcs* Portable Storage Box