OK, the details of the Blood Drive are all set. Lots of folks have committed to be there and Donate Blood. Let’s just make sure all those donors know exactly where they are going. Directional Donate Blood This Way signs with arrows pointing the way are a sure guarantee folks will not get lost when they show up. Sign.Builders is ready to help. Just select the size and material you want your Donate Blood This Way directional sign(s) printed on and place your order. Your custom signage will be on its way to you within 48 hours or sooner if you select rush service.