[Height Adjustable]: Piano pedal, no assembly required, slide the pedal extender under the piano pedal to lock it in place. Easy to operate with the adjustment knob on the side. Height adjustable from 13.5 to 23cm/5.3 to 9.1 inches. [3 Pedals]: New design with 3 pedals, similar to real piano pedals, compatible with different kinds of pianos such as grand piano, upright piano, digital piano. [Rounded Design]: Unique design with rounded corners to protect your child's safety. Piano pedal extender for young players who can't pedal is the perfect accessory for children's piano. [Easy to Use]: Small and lightweight, suitable for wing, piano, digital piano. [Wide Compatibility]: This children's piano auxiliary pedal is suitable for vertical piano, electronic piano, grand piano, digital piano, grand, upright, console, spinet, etc. It can be widely used in home, piano learning center and other places. 。