Designer by RH Modern
https://www.rhmodern.com/catalog/product/product.jsp?productId=prod6430566&categoryId=cat7140186 

Overall: 60" diam.
Minimum Height: 64½" excluding all extension rods (can be shortened to 20" with the help of a licensed electrician)
Maximum Height: 160½" including all extension rods
Canopy: 4½" diam., ¾"H
Rods: two 6", four 12", two 18"
Frame With Shades: 5½"H
Weight: 49 lbs.

The archive includes:
3dsmax 2014 + vray 3.50.04
Vray OBJ.FBX