Home.040 Gloss Caution Yellow Aluminum. 6"x9" with PVC masking on one side-finished side. 2-3/16 inch holes and 1/2" radius corners.040 6"x 9" Caution Yellow Aluminum Sign Blank -2holes & RCSKU: Ohaxindustries$1.97PriceExcluding Sales Tax | USPS Priority MailQuantityAdd to Cart