PACK OF 12 STRONG SCREW CARABINERS: Our set includes 12 stainless steel screw quick release clips. They are all 4.2 x 2 cm in size. The inner length is 3.4 cm. With a thickness of 4 mm, they can support a maximum weight of 227 kg. These carabiners are only intended as a tether and cannot be used for climbing or heavy loads. These chain links can be quickly locked and attached to a variety of attachment points. They can be operated with one hand as they open automatically after unscrewing. Attach a beach umbrella with these clips. You can also attach them to your hiking backpack to secure your important equipment such as water bottles. OUTDOOR APPLICATION: This set of stainless steel carabiners can be used for many outdoor activities. They are really handy when you need to go camping or traveling. Attach your flashlights in your tent with these small carabiners. You can quickly detach it when you need it for other things. They can also be used to attach your fishing or hiking