Package includes: 1 piece guitar finger trainer, designed to effectively train finger elasticity, coordination, and strength. This hand trainer can be used for various musical instruments and also supports finger strength exercises in daily life. MATERIALS - Made from high-quality materials with fine workmanship, this finger exerciser is sturdy and durable. The soft button cap allows for easy squeezing, and its slim design fits comfortably in the palm of your hand. Portable: Compact and lightweight, it can be easily carried in luggage, bags, or handbags, allowing you to strengthen your fingers anytime, whether at the office or while traveling. Unique structure: Features a spring-based design with excellent elasticity for effective finger exercise. The extra-wide, extra-thick base ensures even pressure distribution, while padded fingertips provide comfort and improved finger stretch compared to other hand exercisers. Suitable for a wide range of hand sizes. WIDE APPLICATION: This all-in-one hand exerciser is specially designed for musicians and individuals seeking finger, hand, wrist, and forearm strength training. Ideal for use with various musical instruments and for general hand exercise routines.