soft silicone material ensures skin-friendly comfort and lasting durability.Its portable design is ideal for strengthening wrists, fingers, forearms, and hands at home or office.The ergonomically designed safe grip provides comfortable frequent exercise, promoting rehabilitation and alleviating discomfort from repetitive strain or arthritis.Add your logo or message to customize ( Full-color or one-color logos can be customized). The imprint is odorless and environmentally friendly.