This HAN neoprene foam shoulder rest is designed for use with 4/4 size violins and 16" size violas. It is made of high-quality foam material, which provides both comfort and durability during use. The gray color complements the instrument and adds a touch of elegance to your performance. The shoulder rest is designed to easily attach to the instrument using the durable rubber band included in this purchase all which helps to improve your posture and reduce strain on your neck and shoulders. With this secure and sturdy rubber band, the rest stays firmly in place during use. This shoulder rest is perfect for young musicians looking for a reliable, long-lasting and affordable accessory to enhance their playing experience.