Large Area Protection: The size of the dartboard surround is 17.7in. This extended length dartboard wall protector can protect walls and dartboards. The 1 inch thickness keeps darts from going through the backboard. Material: The rectangular dart board wall protector is made of EVA material and the surface is covered with velvet, durable and long-lasting. Set Up of 4 Pieces: The dart backing is composed of 4 pieces backers that can be easily assembled, disassembled and spliced together and without taking up much space. Easy to Install: No tools are needed, just attach the snaps into place like a puzzle. Function: Suitable for game rooms, clubs, family lounges and many other occasions. Our extended length backboard and dartboard surround will keep your walls safe from stray darts while adding a stylish touch to your game room,the dartboard backboards offer both style and functionality. Color: Black Material: EVA Package Contents: 4Pcs Dart Backboards Wall Protector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.