- Stainless steel gas spring - Materials: Body/rod: stainless steel Rod-end: stainless steel - Works in compression (push) mode - Refilling fluid: nitrogen oil - Working temperature: -20°C to 80°C - Operating Fluids: Nitrogen gas and oil Size 6: approx 10mm Size 10: approx 20mm - Filling tolerance: -20N to +40N Important: Spring must be mounted with piston pointing down Option - Preset forces available to order (for orders of 5 or more): Size 6: 10N to 400N Size 10: 80N to 1300N Uses - Facilitates opening and closing of a bonnet or boot