A 30mm deep tray, loaded with 16 purple winders that slot perfectly in place between foam runners to prevent any rattling and damage.; These winders are 190mm long and 28mm wide, ideal for long and wide-bodied pole floats. The stack system is interchangeable with all the Rive winder trays; 30mm deep tray; 16 purple winders; Foam runners to prevent any rattling and damage; Ideal for long, wide bodied floats; Interchangeable with all the Rive winder trays