The Y.S. Park Guide Combs are made from polyetherimide plastic that is both chemical- and heat-resistant to temperatures up to 430° F. The Y.S. Park Guide Combs have an embedded built-in ruler on the side of combs to give you precise measurements.
The GT12 Guide Comb is similar to the 112 Tail Comb but includes colored teeth at the 4 cm and 8 cm points, useful for training in section-parting techniques.