The Wendy Vecchi MAKE ART Perfect Aligning Rulers are clear, magnetic, acrylic centering rulers. Use for perfect alignment every time. You will find this ruler to be the perfect helpful tool when used with your MAKE ART STAY-tion. Use the MAKE ART STAY-tion grid lines as a guide and a ruler to straighten sentiment strips or cardstock layers along the ruler edge. Available in 7inch and 12inch rulers.