2-pack MOKRIL&reg; Baby On Board Car Safety Sign Exterior Waterproof Vinyl Car Decal Sticker, Carlos Hangover Made from professional grade graphic vinyl. Waterproof. Dimensions: 5.5 x 3.5 inches (14 cm x 9 cm) You may mount the decal on rear windshield, side windows, back of the car, etc. Package includes 2 pieces. Comes with instructions. MOKRIL is a registered trademark and is the only authorized seller of MOKRIL branded products.