Customizable Split Yellow &, Fluorescent Yellow Diamond Grade Reflective Aluminum Sign, 18" x 12" This is a custom product. After your order is completed, SmartSign will contact you for your artwork instructions and design information. You can also send your customization information to us immediately after placing your order. Doing this will allow you to receive your proof faster. Certain print and layout features are fixed and cannot be modified. When SmartSign contacts you, design limitations will be discussed in greater detail. We will create an artwork proof at no extra cost and send a proof for your approval. Once we have your approval, your order will be sent to production. Custom items are typically shipped between 2-5 business days after your proof has been approved.