This Soft-Down Flap Door Lid Stay is for an upward-opening flap door or top-opening flap door. It is non-handed, and designed to hold door in opened or closed position. 

Product Specifications: 

• Soft-Down Flap Door Lid Stay
• For upward-opening or top-opening flap door
• Non-Handed 
• Height: 19.5 mm
• Compatible Hinge Types: Concealed/Piano/Butt
• Material of Arm: Steel, Zinc Alloy
• Finish of Arm: Nickel
• Other Material: White Plastic 
• Maximum Door Thickness: 25/32" Inch (20 mm)
• Soft Close: Yes
• Hold Open Angle (Degree): 80°, 90°, or 100°
• Door Max. Torque (kg-cm): 70/pc, 140/pair
• Door Max. Torque (lb-in): 60/pc, 120/pair
• Door Min. Torque (kg-cm): 40/pc, 80/pair
• Door Min. Torque (lb-in): 35/pc, 70/pair
• Mounting Plate included
• Sold Individually  

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

Per Piece: 40~70 kg·cm (35~60 lbs·inch)

Per Pair: 80~140 kg·cm (70~120 lbs·inch)