Half Spool Kit for Motive® Vertical Cable Manager attaches to Accessory Rod Assembly. Half Spools can be used over and under to create a complete round spool or front/rear to create two half spools. Attaches to Accessory Rod Assembly. Half Spools can be used over and under to create a complete round spool or front/rear to create two half spools. (Not for use with 6”W (150 mm) and 8”W (200 mm) managers).