Tuffbank Site Box. Heavy duty steel plate construction with 3mm thick lid. Ultra robust 5 Lever deadlocks, anti-drill plates on both sides and anti-cut rollers in deadbolt make this site box virtually impregnable to all but the most sophisticated thief. Extra reinforcing around locks to prevent drilling, welded on serial numbers for overnight key replacements and slam stop system to assist with lid closing unexpectedly. Continuous heavy duty fully welded hinge, internal lid support stay and fork skids with fixing slots for easily adding castors (available separately) make this site box excellent security and value for money in one.