6mm safety tempered glass, BS EN 12150 & CE certified. 15mm out of true wall adjustment each side. Pass multi-tylie waterproof test,the best waterproof guarantee. All screws are made of stainless steel ,resistant to rust,life guarantee. Note: Due to the nature and location of our products, the post codes and areas below are beyond our delivery zones:AB,DD,PA,PH,Isle Of Man/Wight, Highland, Scottish and Channel Islands,Republic of Ireland, Northern Ireland areas., Manufacturer: Acezanble