Glass Back Wall PR Sports 12 mm toughened (tempered) glass with all exposed edges smoothed, exposed corners are radiused. The lower 600 mm of all panels have vertical 3 mm wide white lines with 25 mm clear space applied to the play surface. Safety is our first concern. Each integral part of our wall system is tested and reviewed for safety. The tempered safety glass is tested to meet high load bearing impact and is designed to crumble into small, dull pieces in the unlikely event that a panel or fin should break. Tempered Glass has a very high static load resistance (3 to 5 times) as well as a very high impact resistance (5 to 10 times) compared to ordinary glass. In the very rare event of breakage, however, tempered glass will shatter into tiny dice-like particles which minimize serious or fatal injuries, unlike the case of ordinary glass. Squash court glass fitting high strength Nylon strength to with stand high impact are small and cleanly shaped, Least Obstruction, To prevent any annoyance for spectators and players PR Sports Glass Back wall fittings are near permanent. PR glass wall fittings are made of floor fittings in cast aluminum and are engineered nylon for support angles, hinges, door stoppers and lock in steel or aluminum manufactured conforming to the vast standards specification in line with most International fittings of reputed Make.