Material: Our ball pump pin is made of high-quality stainless steel which is durable, portable, safe and will not easy to bent, rust or break. Makes a great gift for sport enthusiasts.Basketball needles are divided into single-hole and double-hole random delivery, the use effect is the same, and there will be no difference.^Safe & Efficient Design: Our air pump inflates the ball quickly and efficiently by increasing airflow. Also, it protects your ball from being punctured at the same time. Ideal for all types of pumps.^Standard Size: Each of our air inflation needle measures about 1.49 in / 38mm in length, 0.27 in / 7mm of the needle pump outside diameter, and the ball inflation needle inside diameter is about 0.16 in / 4 mm. Fits perfectly to various types of pumps.^Wide Application: Our basketball needles can be broadly applied for a variety of inflatable sport balls such as football, soccer, basketball, volleyball, rugby, handball, yoga ball and more. Besides, you can also apply it to inflatable toys or balloon animals.^Package Information: You will receive 20 pieces ball pump needles with a transparent box for better storage. You can take it anywhere you may need it since the air ball needle is lightweight. You will never to worry about losing them and your sports ball game will never be interrupted by a deflated ball with our inflation needles.^