Using the Klein Tools 5187T is a breeze. First, slide the belt through the tunnel loop. Make sure your belt width is up to 2.25 inches (5.7 cm). Then, place your Klein Electrician's Scissors (Cat. No. 2100-5 or 2100-7) and Cable-Splicer's Knife (Cat. No. 44200) into the respective pockets. It's that simple! As for maintenance, keep it clean. You can use a soft cloth to wipe it down regularly. Avoid exposing it to extreme conditions like high heat or excessive moisture. If it gets wet, dry it thoroughly. With proper use and care, this holder will serve you well for a long time.