This versatile musical instrument expander is designed to help musicians improve their strength and flexibility. Suitable for guitar, piano, and other instruments, it aid in stretching and separating fingers, making it easier to play complex chords and melodies. The ergonomic design ensures comfortable use during practice sessions. Features -Color:Black -Material:ABS, Silicone -Size:20.00X4.00X1.50cm/7.86X1.57X0.59in -Enhanced independence: strengthen independence and dexterity, making it easier to master complex chords and improve overall musical performance on various instruments -Comfortable material design: crafted with ergonomic and durable materials, ensuring long practice sessions without discomfort or fatigue, ideal for daily training and skill enhancement -Adjustable resistance levels: features tension settings to cater to different training needs, helping beginners and professionals alike achieve their musical goals efficiently -Portable and lightweight: compact and easy to carry, allowing you to practice flexibility anytime, anywhere, whether at home, during travel, or between performances -Universal compatibility: designed to support training for multiple instruments, including guitar, piano, ukulele, and bass, making it a versatile tool for all music enthusiasts Package list: 4 x Guitar Expander