Features:

Replace worn out rollers without having to purchase the whole hardware kit, and turn your traditional door into an innovative sliding door by using 2 pcs I Shape Rollers for sliding barn doors that fit 1/4" thickness flat rails and door panels ranging in thickness from 1 3/8" to 1 9/16" or from 1 9/16" to 1 3/4".
It is made of high quality carbon steel, which is strong enough to support loads up to 265 pounds when mounted on rails. It is powder coated to prevent rust and scratching. POM rollers feature excellent impact strength to keep track movements smooth and quiet.
This product includes 2 different screw sets for installing on door panels with different thicknesses; Pre-drilled holes on the rollers to save you more time for installation (Door and track are NOT included).
The sliding barn door is perfect for adding an industrial element to any corner of your home, including bedrooms, living rooms, kitchens, bathrooms, etc., as well as long TV stands and entertainment consoles.

Specifications:

A total of 11 1/2" x 2 3/4" x 2 3/4" (29.2 x 6.95 x 7 cm) is the overall dimension (L x W x H).
Diameter of the roller: 2 3/4" (6.95 cm)
The screw hole pitch on the Door Clamp is 3 9/16" (9 cm).
Fits door thicknesses of 1 3/8" to 1 9/16" or 1 9/16" to 1 3/4" (35 to 40 mm or 40 to 45 mm)
265 pounds (120 kilograms) of weight capacity
Carbon Steel, POM, 6002Z.
The wheel style is I-shaped
The net weight of this product is 4.85 pounds (2.2 kilograms).

Inclusions:

Two rollers
Bolts for 35-40mm doors, M10x55
4x M10x60 bolts for doors with a 40-45mm thickness
One set of accessories
Manual - 1

Please note:

This picture does not include the door and track.