TE DEUM 6.6 FT"J" Shape Heavy Duty Basic Sliding Barn Door Hardware Kit Wood Door Sliding | Easy to Connect and Install | for Kitchen,Living Room,cabinets,Bathroom(Black) Crafts & Sewing They are the metal rail

They are the metal rail across the shelf

SAFE TO USE: 220lbs maximum support user weight

100% polyester

With warm white LED design

TE DEUM 6.6 FT"J" Shape Heavy Duty Basic Sliding Barn Door Hardware Kit Wood Door Sliding | Easy to Connect and Install | for Kitchen,Living Room,cabinets,Bathroom(Black) Crafts & Sewing They are the metal railBrand: TE DEUM ; Condition: New ; Material: Heavy Duty Steel. Weight capacity: 200 lb; Fit door panel width: 36"; Door panel thickness: 1 3 8" and 1 3 4". Package Include: 6. 6ft(2x3. 3ft) Rail,5xRail Spacer,2xRoller,2xDoor Stop,2xEnd Cap,1xFloor Guide,1xHex Key; All other necessary hardware is included as you see in the pictures. Easy to install: Include instruction explains every step with words and picture and all data is measured in inch. It is