SET OF 12 SOLID SCREWED CARABINER: Our set includes 12 stainless steel screw-on quick links. They all measure 4.2 x 2 cm. The inside length is 3.4 cm. With a thickness of 4 mm, they can support a maximum weight of 227 kgs. These carabiners are only intended as a tether and cannot be used for climbing or for heavy loads. These chain links can be quickly locked and attached to a wide range of attachment points. They can be handled with one hand as they open automatically after unscrewing them. Attach a sun visor using these clips. You can also install them on your hiking backpack to attach your essential equipment such as water bottles. OUTDOOR USE: This set of stainless steel carabiners can be used for many outdoor activities. They are really functional when you need to go camping or travel. Attach your flashlights inside your tent with to these little carabiners. You can quickly detach it if you need it for other things. They can also be used to secure your fishing or hiking accessories to your backpack. INDOOR USE: Use these security carabiners to keep all your keys together. They will be excellent for school bags. Attach a snack bag to your kids' backpack so they won't forget it. Our stainless steel carabiners are perfect accessories for your garage or workshop. Use them to hang your power or gardening tools. Use it to connect strings together. packing list: 12 pieces