Spindles and Idlers are used to guide operating cords/cables around Model 1400 track curves. Model 1460 Idlers are used only on the half of the track system that includes the Dead-End pulley.Constructed of plated or powder coated formed steel with steel ball-bearing equipped wheel for guiding operating cord/cable around outside radius of a curved track system. Minimum pocket width to accommodate spindles and idlers: Approximately 8″.Not included with CWANA systems. Must be ordered separately amount depends on size and degree of curve(s)