Thank you for viewing. This is a FOM model shoulder rest for 4/4 and 3/4 size fractional violins. It is foldable and easy to store. It came with the violin I purchased three years ago, but I didn't use it because I used another shoulder rest. I will wrap it in bubble wrap for shipping. Thank you. - Model Name: FOM - Color: Black - Material: Plastic - Size: 4/4, 3/4