Chalkboard A-Frame Sidewalk Signs by LookOurWay. Get your business noticed with simple, inexpensive, professional, chalkboard sidewalk signs. LookOurWay's A-Frame chalkboard sidewalk signs are the perfect solution for any business that needs a unique and easy way to promote their business. The chalkboard A-Frames are great both indoors and outdoors and your message will not wash off in the rain. The sale, promotion, or event can be removed by cleaning the chalkboard with Windex. A set of chalks included with the A-Frame allows you to customize any promotion, event, or sale.