Description: Material: PP+TPR Size:onesize Color:blue/black/orange/red -- The adjustable grip trainer is made of high-quality soft material, durable and safe, and won't hurt you. Grip Strengthener will give you a great user experience -- Whether you are female or male, child or adult, beginner or experienced, you can start grip training anytime, anywhere, suitable for all hand types; -- Forearm grips easily adjust 5-60kg of resistance as needed -- Grips add counting, our Grips can keep track of your exerciser number while you're using your grip trainer. So you can get a better understanding of your training progress and training results by counting. It counts automatically with just a firm press of the button. Gently rotate the button to clear the ones digit, press and rotate the button to clear the tens digit. NOTE 1. As we all know ,the different computers display colors differently,the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size ,you can feel free to contact mewe will give you some suggestion,but it is for you reference only. 3.We could accept Mixed items,Colors And Sizes Order. The more quantities, the more Package include: 1 pcs* Wrist Counting Grip