Heavy duty EN131-2 professional swing back stepladder. Tested and certified to new EN131-2, professional. Size of top tread – 120mm (5”); Width of serrated non-slip step treads – 80mm (3.5”); Locking Stays; Good rubber feet fitted all round; With rectangular box section back legs for extra strength and rigidity. If you require advice concerning the safe use of ladders the Department of Trade and Industry Consumer Safety Unit has produced a guide, The Ladder User’s Handbook Ref No. URN 95/577. This is available free of charge and can be ordered direct from the Department of Trade and Industry by dialling 0845 015 0010 and quoting the Ref No. The number of treads quoted includes the platform. Designs may change.