Pieresearch is offering a solution to cage-positioning problems. PieresearchThe Quick-Lock HD pier wheels are made of durable, noncorrosive plastic and fit numbers 3 through 7 rebar ties, providing 2 to 6 inches of concrete cover. The company says installation is simple, making for a properly positioned reinforcing steel cage in a drilled shaft. The wheels are applicable for a variety of other applications where concrete cover must be maintained. Pieresearch manufactures a variety of integrated rebar cage alignment systems for various jobs. www.pieresearch.com