I bought these on GeekHack as a full set, but am using Purple-Blue PBT for my 37 set. Included is the base 37 set (letters, punctuation, and arrows), plus the Esc key and two Windows keys (top printed, non-ninja). See the pics below, these keys are in great shape. They were used less than a month by the original owner, and I never even installed them. $18.00 OBO shipped anywhere in the U.S. via USPS priority mail. Payment thru PayPal, and I always ship quickly.