Vertical Lacer Strips. Perforated steel lacer strips mount vertically to rackrail brackets and provide many locations for securing cable ties. Lacer strips can be cut down easily to smaller sizes. LACE-OWP and LACE-OP strips feature tie posts fo…r sliding on pre-wrapped cable bundles using cable ties or up to 3/4-inch wide Hook and Loop straps. Some lacer strips also accept cage nuts or mounting of select power strips for increased versatility.