Replacement spring for PRESTO or SCHRADE Fishtail switchblade knife

Replacement spring for PRESTO or SCHRADE Fishtail switchblade knife. These are aftermarket springs, not originals, but will work to replace broken or missing springs in Schrade Cut Co, Schrade Walden or PRESTO fishtail automatic knives. Picture show 3 springs, but this listing is for ONE replacement spring only. They are all the same, picture is deceptive.