Portland Gold Violin Shoulder Rest 3/4-4/4 Size Highest-rated violin retailer on Amazon and #1-rated customer service in the U.S. Custom design exclusively offered only by Kennedy Violins! The only shoulder rests backed by a full one-year warranty and 45-day money-back guarantee. Each shoulder rest inspected by Kennedy Violins' professional luthiers in Washington State. High-density composite construction for maximum strength and durability.