Using the Topeak Power Lever is a breeze. When you need to work on your bike's chain master link, connect the two levers to form power link pliers. To remove the master link, hold the chain steady with the integrated chain hook and use the pliers to take it out. For installation, do the reverse. When it's time to change your bike tire, simply separate the tool into two tire levers. Keep in mind that this tool is not compatible with Shimano® QUICK - LINK (SM - CN900 - 11). To maintain it, just keep it clean and dry. Since it's made of engineering grade polymer, avoid exposing it to extreme temperatures or harsh chemicals. That way, your Topeak Power Lever will serve you well for a long time.