P-347 MAIN SPRING: 1″ wide, 3/8c, pear ends, in 2½” coil

P-347 SPRING: 1″ wide, ⅜” center arbor, both ends have pear shaped holes. In 2½” coil. Please note: Springs are NOT returnable. Extreme caution must be used when working with mainsprings! Not responsible for damages or accidents!