Hi,my dear angel, welcome to Jacenvly, our products are cheap and good quality, price is fair, you can't miss it. If this product is not your style, please click on our store, we have many kinds of products, there will be you like and suits you. If you have any questions about your purchase, please send us the first message, we offer world class customer service to make your purchase without your worries. Have a nice day. Silica Gel Portable Hand Grip Gripping Carpal Expander Finger Trainer Grip Strength Rehabilitation Pow Stress Ball Features: New and Fashion and special design Light weight, durable, easy to carry. Suitable for home or outdoor use Environmentally friendly material，made of green rubber ，harmless to human. Ageing, wear. It can hand strength, increase finger dexterity, promote circulation, besides, deflate tension when working under stressful situations. Specifications: Material: Silica Gel Weight: 65 g/PCS Specification: 7.5 CM Hardness: 20LB, 40LB, 60LB, 80LB Colour: Green 20LB, Blue 40LB, Orange 60LB, Purple 80LB, 100LB Usage: Gripping exercise, finger lift Package Included: 1pc Finger Silica Gel Portable Hand Grip Gripping Carpal Expander Finger Trainer Grip Strength Rehabilitation Pow Stress Ball Features: New and Fashion and special design Light weight, durable, easy to carry. Suitable for home or outdoor use