The low profile design allows you to use the wide rails and slab rails on the floor using the mounting nails, from the underside of the wide rail, slab rails and wide trum rails to provide the power unit current to the rail by connecting the connector to the power unit.
Cannot be used on rails other than wide rails, slab rails and wide trum rails. *This product is a product that has been changed in the product name due to the expansion of the usage of the D.C. Feeder N for slab rails is the same as [5537].
Set Contents: D.C. Feeder N for wide rails and slab rails x 1
(From Amazon.co.jp)