Description:Suitable for both adults and children, the standard piano spacing makes the finger playing posture more standard.Supporting buttons, allowing fingers to exert force while maintaining the correct posture.Soft silicon finger pads, comfortable for long time practice, built-in professional spring, the button has sufficient resilience.Semi-raised finger pads design for correcting piano fingering.Suitable for beginner, mainly for the exercise of stable hand shape and support.Specification:Material: Plastic.Size Chart:Size: 13.5x14x6.4cm / 5.31x5.51x2.52inch.Package Includes:2 Pieces Piano Finger Trainers.Note:Color might be slightly different due to the color calibration of each individual monitor.Please allow slightly measuring deviation due to manual measurement.