Custom Semi-Truck, Work Truck, Box Truck Mud Flaps | Add Your Own Text Or Logo | Choose Size & Color | V4Add your business logo or business information to your custom mud flaps. Adding your business information such as your phone number or website is a great way to generate new leads while you're out on the road or stuck in traffic. Select mud flap color, size and input your text (or send us your logo). Note: Designer will choose best font size for your custom order. Note 2: If you need a special size or custom mud flap, just let us know!