The Key Cap This is the piece of plastic that has the letter on it.
The Retainer Clip The plastic or metal sisscor clip pieces that hold the key cap to the base of the keyboard.
The Rubber Cup This is the piece of rubber or plastic that acts as the spring to rebound the key after your press it.
Please identify yourKEY TYPE,every keyboard is different, so please make sure to identify the key type that best matches your keyboard. If you need more info please visit the how to order section.
Great service from the website, great price, and received the item in the least possible time via regular shipping via USPS. I highly recommend this site. Only criticism was no instructions concerning how to install the item. I found the instructions on the Internet.