They are not easy to deform or break, ensuring good sealing effect, strong support, and durability. Weight Support for Various Applications 12Lbs/50N gas struts support lid weights of 8-15Lbs; 22.5Lbs/100N gas struts support lid weights of 18-24Lbs; 33Lbs/150N gas struts support lid weights of 27-36Lbs; 45Lbs/200N gas struts support lid weights of 38-50Lbs.