I have 16 rolling caster wheel parts originally used for Russ Berrie Display Wire Racks see picture of diagram, no longer have these racks so I'm selling the boxes of brand new canisters(has braking capability) for a handy person, someone who is crafty, who can use these wheels and can utilize them for parts(see diagram) Made of durable black pvc vinyl coated, wheel height is 2-1/4" This item is listed as "parts" not complete, there is no screw/nut to connect these wheels to a wired/metal/wood rack use for a handman project See the picture of the instruction sheet so you know what you are purchasing all are new, comes 4 to a box, and I have 4 boxes for sale If you need more see the quantity I have left Shipping: If you are buying more than one item, please remember to check off the area that requests the seller to send an invoice, so I can combine the order for you before you pay. I offer several methods of shipping, choose which is best for you. Thank you again for browsing in my store, there is always something new and exciting coming your way! Feel free to ask questions, and let me know if there is a problem with an order before putting in a claim with, so we can work things out. Thank you again Estate Treasures by Alana