1Made of stainless steel material, integral heat treatment, high hardness, durable. 2Surface sandblasting and anti-rust oil treatment, long-term use is not easy to rust. 3Steel spring, spring center compression spring / torsion spring design, strong elasticity. 4The lock catch design makes the lock easy to open and close. When it is not needed, lock the lock and do not occupy the place. 5Dual-color curved plastic handle, user-friendly design, comfortable to hold, labor-saving. 6Curved blade design, stripping and cutting are more convenient.