1. Made of PBT material, a little grainy texture feeling, not easy to collect fingerprints and shine as ABS keycaps. 2. Fonts are processed with dye-sub technology, color brighter and not easy to fade off. And it doesn't support light shining through. 3. Profile is similar to Cherry profile, a little shorter than OEM profile. 4. Compatible with most of standard layout keyboards which are with "+" switches. 5. Keycaps only, keyboard is not included.