A quick-change design allows wheels on the ROVVER X pipe inspection crawler from Envirosight to be changed quickly, without requiring screws, washers, bolts or any tools. To attach, each wheel is pressed onto a locking hub. To detach, the center of the locking hub is pressed to release the wheel. The design streamlines crawler setup and cleaning, and eliminates the risk of wheel detachment due to poorly tightened bolts. Ten wheel options are initially available: rubber wheels in four sizes, each with a tread pattern that enhances traction and smooth rolling; abrasive wheels in three sizes; and carbide wheels in three sizes. All wheels have optimized geometry for more ground clearance and better centering. The locking hubs can be retrofitted onto existing ROVVER X crawlers. 866/936-8476; www.envirosight.com.