Assures that scales provide accurate readings. Deluxe 10-piece set has 210.5 grains total weight.
For warranty concerns and technical help please contact Lyman at.
Lyman Products Corp
475 Smith Street
Middletown, CT 06457
Phone-800-225-9626
Phone-800-423-9704
Phone-860-632-2020
Fax-860-632-1699
