ITEM NAME:10PCS 15mm Stainless Steel small Tension Spring With Hook For Tensile DIY To ME Description Two sides are circle Spring length:6 mm,total length: 14mm Strong stretching ability, can stretch to 30MM Diameter: 4 mm Stainless Steel Packet Include: 10pcs/lot Spring.Strong stretching ability, can stretch to 30MM. Spring length:6 mm,total length: 14mm. Stainless Steel.