Made High Quality Heavy Duty ABS Material Designed for use with upright piano</br>Underside of each cup is lined with felt pad have sound-proof antiskid effect</br>Designed to be placed under a piano's legs in order to protect floors and carpets</br>Protects wood floor and carpet from caster damage</br>Color is rose color black transparent color marble color optional kagyu?? can better with the color collocation</br></br>Product Description</br></br><br>Don