made of HDPE meet EU standard of DIN76051-53; For heavy duty truck; size: 480mm x 230mm x 200mm. We have more than 20 types of wheel chock for various vehicles. please visit our website or contact me for more information. I believe we have the one you are interested. Qingdao Runbell Co., Ltd. Tel: 86-532-86873761 Fax: 86-532-86873760 http://www.runbell.com Email: [email protected]