Using these brake pads is straightforward. Just install them on your Parolin Cadet Kart as per the standard installation process. When you're out on the track, press the brake pedal to engage the brakes and slow down your kart. As for maintenance, it's a good idea to check the brake pads regularly for wear and tear. If you notice excessive wear, it's time to replace them. Also, keep the brake area clean to ensure optimal performance. When not in use, store your kart in a dry place to prevent rust and other damage to the brake pads.