[Package Include] -- 10pcs * Conical Compression Spring [Material] -- Made of 304 Stainless Steel, corrosion resistant, plasticity, smooth surface and for a long service time. [Specification] -- Size = Wire Diameter * Small Diameter - Large Diameter * Height [Wire Diameter] -- 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm [Widely Application] -- Widely used for everything from home appliances to motor equipment, motor and equipment tools etc.