Worker On Line Marker 8453O1 45 Sockets & Adapters To order replacement screws use Model:Screw Lock To order replacement screws use part #14 This equipment backpack is large enough to carry all the equipment of a traditional equipment tool bag but lets you haul your gear in Backpack form and now gives you the convenience of an extendable handle with wheels for easy toting Material Color: Blaze Orange Attachment: Hook and Loop Includes Truck Radio #: Yes Includes Location: Yes Front Reflective Strips: Yes Back Reflective Strips: Yes Wire Attachments: Yes Bottom PVC Stiffener: Yes A Hi Visibility orange WORKER ON LINE marker with two reflective for easy visibility when working at night