Feature 1、Size: The dart board wall surround is 28.5in outer diameter, 17.75in inner diameter, 1in thick. Constructed with EVA, allowing errantly thrown steel tip and soft tip darts to be absorbed, protecting your walls and flooring from damage. 2、Protect Your Wall: Adds a protective barrier around your dartboard, preventing unsightly marks and puncture. Thick EVA prevents your darts from damaging your wall. Does not include the dartboard. 3、Protect Your Darts: Catches your darts and protects them when playing on harder surfaces, like cement or brick. Enhance your darts experience. Improve your dartboard appearance. 4、Universal Compatibility: Ideal for home or pub, game room, club, etc. This dart board backer protects your wall from errant throws. Suitable for standard 17.75 inch and 18 inch bristle dartboards. 5、Easy Installation: No tools needed, just splicing 4 pieces dart backboards together. Does not take up space after disassembly. Enhance your dart game with this reliable dartboard wall protector. Item Type: Dart Board Backboard Material: EVA Outer Diameter: 72.4cm / 28.5in Inner Diameter: 45.08cm / 17.75in Thickness: 2.5cm / 1in Package List 1 x Dart Board Backboard (Total of 4 Pieces)