All of the keycaps in this auction come from ANSI IBM Model M 101 key keyboards with black IBM logos that were manufactured by IBM (exactly like the one pictured in the main auction photo). These keyboards had bad membranes and were otherwise structurally fine. If you need parts that are not listed here, message me and I can create a custom eBay listing for you. Single unit caps on these are two pieces (cap plus stem). ALL SINGLE UNIT CAPS PURCHASED INCLUDE THE STEM AS WELL.
Keycaps have been ultrasonically cleaned and they are ready to install and use. Caps will have no noticeable wear and are in excellent (very close to new) shape!
The "Clear/Transparent" 1U keycaps listed towards the end are yellowed and may surface wear. These are also known as relegendable caps and are normally not found on Model M 101 keys and they are made of ABS which is why they yellow over time and are more prone to surface wear.
Thanks for looking and please ask any questions that you may have!