You are bidding on a Vintage Matco 2 Piece Locking Swivel Casters from MB316 Protector Roll Cab.  Please see picture number 11 for the size of mounting plate and distance between holes.  Wheels measure 4'' across.  Units  includes the original 8 bolts fasteners to secure on your box. May have cosmetic blemishes like dirty, wear, scratches, dents, from age or use but in good working condition. Unit is being Sold As Is With No Warranty or Guarantee. Buyer is responsible for any return shipping costs. Unit was removed from a Vintage Matco MB316 Protector Roll Cab 6 Drawer.  This package will be Shipped Priority Mail for Super Fast Delivery.  Please examine pictures for these are the exact items you will be receiving.  Seller reserves the right to remove this listing at anytime because the items may be listed on multiple selling platforms. Thanks for shopping and have a great day.