THIN-X-TENDERS are a white 24-mil thick acid-free backing board, economically priced to be competitive with the so-called "acid free at time of manufacture" backing boards. Thin-X-Tenders are an inexpensive alternative without sacrificing archival quality protection
TIME-X-TENDERS are a pure, bright white heavy weight 42-mil thick acid-free board and is the highest quality board available.
LIFE-X-TENDERS are the ultimate acid-free backing board. They are made with a thin layer of activated charcoal laminated between two sheets of true archival acid-free boards. Life-X-Tenders absorbs and neutralizes the contaminants in comic book pages and retards the aging process.