P-338 SPRING: 1″ x .034 x 10 ft. ¾” bent arbor, Inner end in shape of “7”, Pear hole outer end. This is a never used old stock (NOS) with original wire coil. It is a special spring with the inner end shaped like a “7” and for that is a rare item. Please note: Springs are NOT returnable. Extreme caution must be used when working with mainsprings! Not responsible for damages or accidents! USA shipment only.