The Milwaukee Hand Tools Long Open Tape has a steel blade with double sided scale printing: metric measurements on the top side and imperial (inches and feet) on the underside of the blade. The blade also has a nylon clad (extra thick nylon coating) for increased durability. Offering best in class stretch performance, up to 50% less stretch vs. fibreglass tapes. The body has an ultra-durable design with reinforced metal handle and drop durability. Fitted with a GRIME GUARD, this debris wiper keeps blade clean and clear of abrasive material each time it's used. The 3:1 clutched planetary gearing provides up to 10x longer gear durability and smooth rewind. Accuracy: EC Class II