[Easy to Carry] The fingertips are made of high-quality materials, are strong, not easily damaged, reliable, and durable. You can use them to practice anytime, anywhere. [Increase Finger Spread] This tool helps you quickly straighten your fingers and increase your spread; it stretches the joints and strengthens the fingers, making them more flexible. Through continuous practice, you improve your basic skills and train your fingers. [Ergonomic Design] The adjustable design is more ergonomic and offers optimal comfort. The finger rests are made of soft silicone material, which is comfortable and easy to use. [Finger Spread] Effectively solves problems such as loose and weak fingers, a loose hand, and insufficient finger spread. You can practice with four or two fingers. The finger holes have a diameter of 20 mm. If you find the finger holes too small, you can remove the fingertips. [Finger Exercise Device] Stretches finger joints, making it easier to press down strings. An indispensable tool for stretching fingers and practicing musical instruments, suitable for beginners on guitar, ukulele, violin, and piano.