Prime-Line Products SP 9601 Spring, Extension, 5/16-Inch by 1-1/2-Inch,(Pack of 2) General use spring for toys equipment tools etc. Made from spring steel .020 wire diameter 5/16" x 1-1/2" Nickel Plated General use spring for toys equipment tools etc. 5/16" x 1-1/2" Nickel Plated