Description: There is no doubt that it is easy to carry because it design of compact size and light weight. And it is safe to use due to the fine workmanship. On account of the waterproof performance, our product can be washed while it can be uesd for training the flexibility of fingers effectively due to the bump design. It is made from TPR, is wearable to use. The length of the product is 8.6 cm, the width is 8.6 cm and the thickness is 2.3 cm. Our product is suitable for fingers relax. Item Name: Grip Strengtheners Material: TPR Features: Smell-less, Portable, Bump Design Product Use: Grip Training, Muscle Massage, Decompression And Relaxation, etc. Hardness: 10LB Green, 20LB Orange, 30LB Blue, 40LB Purple Color: Green, Orange, Blue, PurpleSize Details: 8.6cm x 8.6cm x 2.3cm/3.39" x 3.39" x 0.91" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Grip Strengtheners Our product is suitable for fingers relax. There is no doubt that it is easy to carry because it design of compact size and light weight. And it is safe to use due to the fine workmanship. Due to the compact size, our product can be carried anywhere while it can be operate by one hand. It is eco-friendly to use due to the high-quality silicone material. Adopting eco-friendly silicone material, it is safe and smell-less to use. It is compact in size, which is easy to carry, and can be used with one hand. Definitely, our product can be operated by one hand because it is small in size. And is smell-less and healthy to use.