1Made of high quality low carbon steel, tough enough, not easy to break and deform, strong clamping force, durable. 2The top of the hairpin is designed with a round head for safer operation and less damage to the hair. 3Three sizes are perfect for different hair styles. (S, M, L) 4U-shaped hairpin thread design, anti-slip and anti-drop during operation, can better tighten the hair, not easy to make the hair fall off. 5Made of whole body paint, which is not easy to rust, corrosion resistant and durable.