The guide comes in two parts, the honing guide and the angle setting guide. The angle setting guide slides onto the front of the honing guide and the angle is selected by a positively positioned guide and brass screw. The markings are very clear and there is a wide range of adjustment.
The honing guide allows you to select an angle range (1, 2 or 3) reflected on the angle setting gauge.
The chisel or plane iron slides in and up to the gauge on the underside. Once engaged and locked, the blade is ready for sharpening.
The Veritas is heavy compared to other guides, but it isn't heavy to use. It's solid. The wide roller gives great stability and a micro bevel adjuster on the roller gives you a fine edge without having to reset the tool.
If you need a guide for honing tools, then I'd recommend this one even though I've only had it a day.