Safety Soft Close: The lid slows down when the opening angle is less than 70 degrees. The lid will lower slowly and gently, holds without slamming and protects your fingers from being crushed. Soft close lid support hinges are a safety solution for toy box lid and wooden box Great Support: Each pack of gas spring hinges maximum load capacity: 100N: 10.2kg; 150N: 15kg. If you use 2 packs of hinges together, the load capacity will be doubled. The heavy-duty gas lift will keep your lid open until you push it down. The gas strut can stay in place while working when the opening angle is greater than 70° Durable for Longer Use: Made of premium cold-rolled steel and copper core with maximum corrosion resistance and durability, the gas spring lid hinges are designed to provide consistent support for years to come Applicable Dimensions: To ensure reliable support, the maximum lid length is 130cm and the maximum lid width is 65cm. Please ensure the inner depth is at least 23cm to accommodate