steel tape,ABS case tape have inch and cm size:2m-10m one stop button 1.ABS Case is enough thickness and hardness, more durable.2.one brake.3.Material of blade is 50# carbon steel, 0.11mm thickness.4.Spring is enough long and elastic,65# manganese steel material,toughness is very good.5.In use process no noise.6.packing:packing of nominated brand or the licensing Process,white box,color box,paper ...