1.Attractive appearance 2.High-quality and reasonable price. 3.Durable to use 4.Three stop button 1. ABS plastic case ,bright,odorless,it looks shiny 2.Three stop buttons, Flexible and convenient in use. 3.ABS case, Environmental protection ,durable. 4. 65#manganese steel spring,toughness is very good. 5. The thickness of the 50# carbon material blade is 0.1mm.(It depends on customer's demand) ...