This kit includes: FRIZZEN with tipped-forward toe geometry for fast action with the over center cam on the frizzen spring. Frizzen is slotted for use with the anti-friction roller included. FRIZZEN SPRING with fancy leaf finial and improved cam ramp for the roller frizzen. Frizzen spring is tempered, roller needs to be installed. Frizzen is annealed and ready to be fitted to the lock plate. Frizzen needs to be hardened. No. 89251