Features: Quality Material: The finger exerciser is made of quality ABS plastic material with fine machining, it is very sturdy and durable to use. Convenient to Carry: With compact and light design, you can carry it in pocket, bag or instrument case .You can use the finger exerciser to practice without your instrument anywhere any timing. Ergonomic Design: Unique ergonomic design and soft button, allowing you to exercise fingers, wrists and forearms while practicing the correct action for playing musical instruments practice. Build Strength And Dexterity: Develop and maintain strength and dexterity in your fingers, hands and forearms. The over molded finger pads and grip help make your conditioning workouts comfortable. Widely Used: Suitable for the auxiliary exercise of instrument playing, physical exercise and , triggers ringer training, physical therapy and rock climbing. Great finger practicing tool for guitar and piano. Specifications: Material: Plastic Color: As The Picture Shows Package Weight: approx.82g Size: approx.88x21.5x67mm/3.46x0.84x2.63in (More Size Detail, Please See Photo.) Package Includes: 1Pc x Finger Strengthener note: Please allow 1-3mm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!