These are Lumia Matcha, a linear switch in a nice cream and matcha green colorway with a progressive spring. The switches also utilize a long pole stem for a more solid bottom out sound. With the high stability of housing, switch film doesn't necessary. A complete lubricate process is done with GPL-105 and GPL-205G0 Lubricates, during the manufacture of the Lumia Matcha Switch. No additional greasing needed when you receive this product!