High-Quality Material: The air pump needles are made of premium stainless steel material, durable, portable and safety. Size: The length of the air needle is 1.5 inch/38mm, outside diameter is 0.3 inch/7.5mm, inside diameter is 0.07inch/1.88mm. Easy to Use: The air Inflation pump pins are easy to use and just need to use it to inflate the ball by simply tightening the ball needle on the pump, universal and easy to use. The butt end standard thread is compatible with different types of air pumps, hand pumps, ball pumps, bicycle pumps. Package Information: You will receive 100 pieces ball pump needles, enough quantity for your use and replacement, convenient to carry. You can take it anywhere you may need it since the air ball needle is lightweight. Wide Applications: The air pump needles can be applied for air pumping, hand pumping, ball pumping and any inflatable balls such as basketballs, footballs, volleyballs and so on. And you can also apply it to inflatable toys.