This Soft Down Lid Stay is for top-opening flap doors used with piano, butt, or concealed hinges. It is used in pairs and is designed to hold door in fully opened position. 

Product Specifications:

• Soft Down Lid Stay
• Medium duty
• For top-opening flap doors
• Right position
• Compatible Hinge Types: Piano/Butt/Concealed
• Hold Open Angle: 70°
• Soft Close: Yes
• Arm Material and Finish: Steel, with Nickel finish
• Other Material: White Plastic
• Door Max. Torque (kg-cm): 250
• Door Max. Torque (lb-in): 216
• Door Min. Torque (kg-cm): 200
• Door Min. Torque (lb-in): 173
• Used in pairs
• Sold Individually

Torque Calculation: Torque = Door Height × 1/2 × Door Weight

Torque per Pair: 200~250 kg·cm (173~216 lbs·inch)