Train Buffer Beam with Sealed Magnets - Type 1, Part# 64424 – Atlanta Brick Co
LEGO PART 29085c01 Train Buffer Beam with Sealed Magnets [Type 3 with Closed Bottom] | Rebrickable - Build with LEGO
Amazon.com: LEGO Parts, Bricks, and Pieces - Black Train Parts Combo Pack (2 X Buffer Beam with Sealed Magnets and 2 X Train Wheel RC, Holder with 2 Black Train Wheels) : Toys & Games
LEGO Black Train Buffer Beam Rectangular Buffer and Plow Coupler Magnet #45708 | eBay