Product name:Hand trainers Product size about : 7cm/2.75in Product color: As shown in the figure Product material:TPE product features: 1. Silicone material: Our grip strengthener is made of high-quality silicone, durable and long-lasting. Silicone material provides a comfortable grip and prevents slipping during hand strength training. 2. Resistance Level: This grip strengthener comes in a variety of colors, each color represents a different resistance level. The resistance ranges from light to heavy, allowing you to gradually increase the intensity of your hand strength training. The maximum resistance level reaches 60 pounds, providing a challenging workout for your hand muscles. 3. Multifunctional and Portable: Our grip strengthener is perfect for office and leisure activities. It's compact, lightweight and easy to carry around. Whether you're at work, traveling, or just relaxing at home, you can easily incorporate hand strength training into your daily routine. 4. Effective hand strength training: Regular use of our grip strengthener can help improve your hand grip strength and overall hand and forearm muscles. Suitable for a variety of hand exercises including squeezes, stretches and finger strengthening exercises. 5. Ergonomic design: The grip strengthener is designed with an ergonomic shape to fit comfortably in your hand. The textured surface provides a secure grip and prevents the device from slipping during use. The compact size and lightweight design ensure it can be used by individuals of all ages and fitness levels. Precautions: 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 contact us at any time. We will give you some suggestions, but for your reference only. Shipment includes: 1 pc Hand trainers