Description If you are looking for a professional and affordable spring ring hook, then your research is over here. That's because our product can meet your need. Adopted of premium material, it is practical and durable for long time use. It is easy to use and bring you much convenience. Features -Color: Silver. -Material: Zinc Alloy. -Size 1: About 2.50 cm/0.98inch. (Outer diameter) -Size 2: About 1.5 cm/0.59inch. (Outer diameter) -Size 3: About 1.8 cm/0.71inch. (Outer diameter) -Size 4: About 2 cm/0.79inch.(Outer diameter) - The spring rings are made of zinc alloy, durable for long time use. - Spring design, you can open and close the snap clips easily by using one hand. - These snap clips allow quick attachment of key, ropes, cables and backpack, harness. - Great for outdoor indoor applications such as hanging lights, attaching keychain clips, backpack hanging water bottles. - The spring round ring has smooth surface after good process, so you can buy it with peace of mind. The spring rings are made of zinc alloy, durable for long time use. Spring design, you can open and close the snap clips easily by using one hand. These snap clips allow quick attachment of key, ropes, cables and backpack, harness. Great for outdoor indoor applications such as hanging lights, attaching keychain clips, backpack hanging water bottles. The spring round ring has smooth surface after good process, so you can buy it with peace of mind.