I've got a matched set of custom turkey calls set in zebrawood. One is slate, and one is glass. I can't recall who made them. I've had them for about 2 years, and never used them in the field. The glass one has a crack in the glass that you can see, but cant feel. It was never dropped, I just picked it up one day, and it had a crack in it, straight across the glass. It doesn't appear to affect the sound. Also have a H.S Black Magic slate, brand new, but no packaging. $20 for the slate, $15 for the glass(since it's cracked) and $15 for the Black Magic. Buy all 3 for $40. Prices include shipping, and the calls will be sent the same day payment is recieved.