1.[ BEFORE PURCHASING -Very sturdy and with much pressure! ] The chest lid hinge is very sturdy and with much pressure!! Nice performance for lids that hurger or weight heavier, but no fit cabinet as that small or light lids/doors. Please note the heavy duty support weight of this lid support hinge before purchasing. If the lid is relatively light, only 1pc chest hinge (support 30lbs) is needed! 2.[ SLOW CLOSE LID SUPPORT HINGES ]It's soft close hinges for heavy lid. Excellent soft close and solution for heavy lid chest hinges, huge toy box hinges. Lid support hinge will hold the heavy lid opened until you push it down, then slow close gently to avoid to slam shut and crush the fingers. Good product fit for the large toy box or chest. 3.[ STRONG HEAVY LID SUPPORT HINGE AND 75°-105° OPENING ANGLES ]200N gas struts heavy duty chest hinges support heavy lid up to 60lb/2pcs (Under 30lb/ only 1pc needed!), and chest lid slow lowering. Allow lids to open for 75°-105° adjustable opening angles. 4.[ EASY TO INSTALL- Important:Refer to our install videos and mail images! ]The heavy duty toy box hinges soft close can be installed on left or on right. Also can be used for side-mounting and top-mounting. And we will provide lifetime warranty (no man-made) and friendly customer .