Special Edition, Martha Stewart Crafts Scoring Board Tool for Making Cards, Envelopes, Giftboxes, and More, 12" x 12" Score flawless, crisp lines in seconds when creating invitations, envelopes, gift boxes, and more. This score board includes an envelope guide with a convenient storage slot and bone folder. Board also includes a storage compartment for your bone folder and pens. This board measures 14 by 13in and features measurement guides along the top and side to 12-1/2-inch in 1/8-inch increments with groves every 1/8-inch for detailed scoring.