Using these AltaFLEX Elbow Protectors is a breeze. Just choose the fastening system that suits you best - the Original AltaLOK Easy On/Off or AltaGrip Hook & Loop. Then, simply adjust them to fit your elbows comfortably. They're adjustable, so they should fit most sizes. When it comes to maintenance, you can easily wipe them down with a damp cloth to get rid of dirt and debris. Make sure to keep them in a dry place when not in use. Also, be careful not to put too much force on the brass grommets while using or adjusting the pads. And remember, these elbow protectors are sold as a pair, so you'll always have both elbows covered.