Apply vinyl Placards directly to vehicle. For tagboard and rigid styrene placards, insert in Holder (sold separately below) and mount to truck. Specifications:Rigid styrene Placards are 20-mil virgin styrene with full 1-mil overlamination. Each diamond (square-on-point) Placard measures 273mm x 273mm (10-3/4"H x 10-3/4"W). 3/4"H Number and Letter Kits provide you with the numbers and letters to properly placard your explosive shipment and are needed to comply with explosive placarding regulations. No. 26859V available in vinyl only. Slow-Moving Vehicle Marker available as a flexible, self-adhesive vinyl decal or as a vinyl decal mounted on aluminum for stability. Please Specify Material: RS (rigid styrene), T (tagboard), V (vinyl).