Description:DURABLE: Piano Finger Trainers, made of ABS material,durable

SIMULATION: The key depth is basically the same as that of a piano, about 10mm

NONSLIP: Fingers training tool with silicone material on the bottom, non slip

APPLICATION: finger design, suitable for most musical instrument players and it can also be used for finger strength exercise

GIFTS: Training Finger Hand Grip Exerciser, Nice gifts for beginners, kids, adults

Size Chart:13cmx12

5cmx6cm/5

12inx4

92inx2

36inPackage Includes:1 Piano Finger TrainersNote:Please allow slightly errors due to manual measurement and different monitors