SE SC123 Heavy Duty Knife Edge 4-1/2" Thread Nippers 4-1/2" heavy duty knife edge thread nippers for snipping threads, heavier yarn, thick fabric, and more Improved control with specialized easy grip handle with thumb rest Features a quick action spring RETURN that opens blades after each cut Round loop makes clipping action easy by PUSHING the blades together with thumb and finger Constructed of stainless steel