10Pcs Compression Spring Wire Dia 0.8mm 1mm Length 10mm-305mm Stainless Steel Features: ● Good elasticity, corrosion resistance, high hardness, good toughness and rust resistance. ● Material: 304 Stainless Steel ● Size: Wire Dia x Outer Dia x Length(mm) ● Wire Dia: 0.8mm / 1mm According to your choice ● Outer Dia: 6mm-16mm According to your choice ● Length: 10mm-300mm According to your choice