1 PACK = 110+5 SPRINGS Material: STS304 BR, Ni-Mo , KOS Free Length: 22mm (+-0.02) Coil Diameter: 4.05mm (+-0.02mm) Spring wire diameter: 0.22mm - 0.25mm Bottom out weights: 57.5g ~ 67.5g (±0.3g) Brand: GEONWORKS / Manufacture in South Korea