furniture hardware: Specifications: strokel length:60-150mm extended length:200-370mm piston diameter:6mm cylinder diameter:15mm force range:25-400N Packing and Delivery: packing details: 1.1 pc/a plastic bag. 2. 100pcs/carton size:32cm×31cm×21cm. 3.as your request. delivery details: it's up to your quantity. Certification: GB/T19001-2000-ISO9001:2000 standard. Item Gurantee Life: Through more than 50,000 times recitprocating fatigue test. warranty :one year. Product Features: long lifespan.superior design .reasonable price.fast delivery.excellent painting surface.high quality.caution: Don't open,high compressure.