Professional Aroma Hand Finger Exerciser Medium Tension Hand Grip Trainer for Guitar Bass Piano Black AHF-03 Product Features: Intensify your practice for specific finger with exclusive "key-hold" feature. Develops and maintains the strength and dexterity of your fingers, hands and forearms. Comfortable finger pads and allows you to adjust individual finger tension from light to heavy. Widely used for finger exercise when you play guitar, piano or orchestral instruments. Hand exerciser grip, a perfect tool to all music players. Safely and conveniently build strength, endurance, flexbility and coordination. Specifications: Color: as picture Brand : Aroma Model:AHF-03 Tension range: 4Lb - 7Lb Package Size: 13 * 11* 2cm / 5.1 * 4.3 * 0.8in Package Weight:95g / 3.4oz Note: Please allow 1-3CM differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. The guitar showed in the picture is not included. Package Includes: 1 * Hand Exerciser