Professionals Recommended: Hand Yoga Is Being Used Many International Professionals In Various Fields Such As Musicians, Physical Therapist, Doctors, And Technicians For Their Healthy Hand And Finger.High Grade Material: Finger Band Is Made Of Silicon With Great Elasticity And High Grade Neoprene And Strap Make The Product Perfect For AnyoneBest Hand Exerciser: You Can Train Fingers Individually Or Together With Different Tension Force.It Is Mainly Focused On The Fingers And Overall Part Of Hand Rehabilitation And Exercise Of Muscle.Material: Silicone + Alloy + ClothSize: 20lbs-Green; 40lbs-Blue; 60lbs-Red; 75lbs-BlackWeight: 110gPackage list:1 x Finger Extensor Exerciser About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances. Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 139469 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.