Review on Klein Tools 56250 Wire Marker Book: Easy-to-Use Labels for 1-48 Numbering System by Jeffrey Mosqueda

These wire markers are great for organizing complex wire harnesses/looms. However, I strongly recommend not copying the label. A bunch of dangling flags keeps wires from slipping past each other and creates a mess when you need to organize them neatly. I recommend placing the labels in line with the wires. I've used this method hundreds of times on 18-18 gauges. Anything a size or larger, they work great. (The photos are from a simulator I built for a college that trains vacuum cleaner technicians. The checkboxes made organization easier and saved me a lot of time!)