The VLMCVA3 is a purple Viva compact shoulder rest with folding feet designed for fit and perfomance by a string teacher for string players and educators using a 16 1/2" to 15" viola. The shoulder rest has a pateneted lateral adjustment system ensuring proper fit for all widths for comfort and to encourage proper playing posture. They are a ergonomically designed BASF compostie providing complete and comfotable support without tipping or over extending. the feet of the shoulder rests are stepped and grooved providing an incredible grip with minimum sound dampening contact.