Using the Yakima WB300 Ski and Snowboard Roof Carrier Rack is easy. First, use the t - slot hardware to mount the carrier securely on your vehicle's roof. Open the carrier using the SmartFlex hinge system and place your skis or snowboards inside. You can fit up to 6 pairs of skis or 4 snowboards. If you have tall bindings, use the SmartLift design to raise the carrier for more clearance. Then, lock the carrier with the Integrated Lock System (ILS) to keep your gear safe. When it comes to maintenance, regularly check the carrier for any signs of wear and tear. Clean it with a mild soap and water solution to keep it looking good. Make sure to tighten the mounting hardware occasionally to ensure a secure fit. Also, don't exceed the maximum weight capacity of 42 kg to avoid any damage to the carrier or your vehicle.