Network
15mm-76mm Inside Diameter
Wordpad, Data Book, File Box
Paper
Iron Steel, Stainless Steel
Nickel Free and Lead Free
Book, Ring Binder, File, Crafts, Card
15mm, 19mm, 25mm, 32mm, 38m, 51mm, 76mm for Inside
Factory Manufacture
5000 PCS One Carton 36*25*17cm