Description Manufactured with metal material, practical and durable for long lasting use.These book binder rings mechanisms canmeet yourloose leaf book DIY making. Well polished and smooth surface, will not hurt or scratch your hands. Features -Color:Silver -Material:Metal -Size:18.00X2.00X2.00cm/7.07X0.79X0.79in -Metal binder ring mechanisms are not easy to break, durable and reliable, which can be applied for a long time. -These A6 6-ring binder mechanisms fit for A6 size binders, bringing a lot of convenience to your daily life. -Enough quantity binder mechanisms, which are sufficient to meet your daily work, school, office use and replacement -6 ring loose leaf binder mechanism, make your book clip lock firmly, sturdy and not easy to fall off -They can be simply expanded and closed easily, easily add or remove pages, convenient and flexible to use Package list: 7 x Ring Binder Mechanism