... 1"~2.5'' Metal Opening D-ring 1.Strip steel Made 2.Multiple sizes,colors,styles 3.Nickel Plated 4.Office, School, Project us 1"~2 ... .5'' Metal Opening D-ring :Features:1. Easily attached and detached, ... years experience in stationery file clips manufacturing .2. equipped with completed facilities and more than ... better. Thanks & best regards! 1"~2.5'' Metal Opening D-ring