Furniture Caster Cups，Jinli ABS Plastic Piano Caster Furniture Round Wheel Cups Piano non-slip mat Gripper Set Load Bearing for Upright Piano [4 Pack<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Designed for use with grand pianos </span></li><li><span class="a-list-item"> Protects wood， tile， and carpet from piano caster damage </span></li><li><span class="a-list-item"> Designed to be placed under a piano's legs in order to protect floors and carpets </span></li><li><span class="a-list-item"> Made for High-Quality ABS Plastic Material. </span></li><li><span class="a-list-item"> Package : set of 4. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/518C3Y9elHL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51oI4KHuRxL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51SMK-fR67L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41XR67NO%2BnL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41COycNxsQL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51ln22o0zAL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/619jBBBLV8L.jpg" noproxy>