The Take Down dredge bar utilizes a patented design that easily assembles and disassembles without tools. Unscrew the head and insert the arms into their slots. Once screwed back the arms are locked into place. The dredge is convertible, use 2 arms for a spreader bar, 3 arms, 4 arms or 6 arms for your customized dredge. Arms are also interchangeable if broken or if bait needs to be quickly switched out.