The included rubber bands hold the guard in place so you can work hands-free, and they won't interfere with your work.
Each set includes 1 narrow, 1 medium, and 1 wide guard.
Each guard is made in the UK out of 0.2 mm stainless steel.
Narrow - 1.78 mm slot width
Medium - 2.46 mm slot width
Wide - 3.18 mm slot width
Dimensions - 16 mm x 80 mm
Slot length - 70 mm