Die Spring, Extra Heavy Duty, Color Red, Oil Tempered Chrome Silicone, Finish Paint, Overall Length 3-1/8 In., Outside Dia. 9/16 In., Wire Dia. N/A, End Type Closed and Ground, Large Outside Dia. 0.360 In., Small Outside Dia. 0.125 In., Compressed Length N/A, Spring Rate 90 lb./in., Meets/Exceeds JIS SWOSC-V, ASTM A877, Package Quantity 5