Mobile Shop Desk Polyolefin Core Non-Marking This caster is listed

Non-Marking This caster is listed with wheel diameter 4"

Vulcanized To Core This caster is listed with wheel diameter 5"

The product information lists mechanical spring operation

Miniature air line components comes with the air line regulator

Mobile Shop Desk Polyolefin Core Non-Marking This caster is listedProduct Overview The Durham Mobile Shop Desk is designed for 16 gauge steel. Review the product details below to confirm the size, capacity, and configuration for your application. Key Features 16 gauge Steel Durable gray powder coat Two locking drawers One Locking Cabinet Capacity: 500 lbs. Material: 16 gauge Steel Ideal For Choose this product if you need: Organizing small parts, tools, or supplies Moving supplies between work areas Industrial