Giới thiệu Set 12 khoen đóng gáy 3 vòng đường kính trong 20mm tiện dụng làm sách/sổ tay
The ring metal loose leaf binder is waterproof and rust-proof. What's more, it can prevent damage so it has long lifespan for you to use. Good materials:Made from multi-layer -plated stainless steel, the ring metal loose leaf binder is durable and reliable, and can be applied for a long time without being broken. Size: total size is 4 x 2.5 cm/ 1.57 x 0.98 inch, inner diameter is 2 cm/ 0.787 inch colour: sier/gold/black Material: metal