Second generation frogskin is correct. They are nice but can be extremely brittle so be careful. The older o-matter dried out and broke a lot. Gen 3 frogs just got better when they came out. This pair is as early as 91. They stopped making them in 96 I believe. Nice catch. I've been looking for a crystal red gen 2 for years and was never able to get one in decent shape. Seemed every time I bought one they were either already broken and glued or they were so beat up they were unusable..