GENTLY CLOSE DESIGN -- Excellent safety solution for heavy hinged lids, lids will lower slowly and gently to avoid smashing fingersHOLDS LID OPEN -- These hinges will hold your lid open until you push it down. Never worry again about having to prop the lid openSTRONG ENOUGH -- Douper 200N heavy duty gas struts can support minimum 20 lbs and maximum 30 lbs lid and lower gently; Weight support will be doubled with 2 hinges (40lbs 60lbs/ 2pcs). Of course, this is a theoretical value, and the load-bearing range decreases as the height of your lid increases.75°-105° OPEN ANGLE -- Each lid hinge can be used for right or left hand mounting, keep the hinge installed for 75°-105° adjustable opening angles, depending on actual situation. Note: NO adjustments on placement measurements of the hinge mounted on side board.WARM TIPS -- Douper hinges will not applicable with the lid at width more than 50” and height over 25”. And at least 9 inches height distance needed for the side mount. Hinges will not work if your lid doesn’t match specified dimension and weight requirement Product Description Do you want to make the toy box lid safe for your grandson so he couldn't smash his fingers?Do you want to build a chest which has a heavy lid that is difficult to open or close? Douper 200N heavy duty Lid Stay with Soft Down Hinge will be a good choice to solve these problems 200N/30lbs Heavy-Duty Heavy duty Douper 200N heavy duty gas struts can support maximum 30lbsWeight support will be doubled with 2 hinges (60lbs/ 2pcs) High quality Effective Soft Closing Safety is the priority. The gas spring dampers the closing of the heavy lid as well. It will lower slowly, and protect your fingers from being smashed. How it works 75 Degree Minimum opening angle 75°-105° adjustable opening angles, depending on actual situation 105 Degree Maximum opening angle Soft Closing Movement The soft closing motion ensures your safety. Our quality hinge works perfectly to damper the closing speed of the heavy lid. As the lid is going down slowly, Kids will have great fun with their various toys for this lid stay hinge.