These Xtreme tapes have a huge standout from their 32 mm wide blade. The Mylar coating makes the blade 10 times more resistant to abrasion and unique blade armor coating protects the first 8cm, where the tape suffers most wear and tear. With heavy-duty, slip-resistant casing with easy-grip rubber moulding and 3-rivet tru-zero hook gives extra strength and prevents breakage on rewind, also the hook moves in or out to compensate for internal and external measurements. Stanley STA047443 Blue Chalk Line Level 30m 0-47-443 This chalk line has an ergonomic design, with a high impact ABS case for durability. It has an on-board hook storage, a crank which folds into case for storage and a sliding door which allows for quick and easy refill (30g. Chalk Capacity). It has a stainless steel end hook for added durability and rust prevention and can hold 30m of string.