NCC-1701-KB (v1&2) and Noodle Pad v1 Keypad Acrylic Base Plate Kit 
This is the base/case for the NCC-1701-KB mechanical keypad. 
Compatible keypad listing: https://www.etsy.com/J2LDesigns/listing/752039967/

This kit includes:
1x Laser cut and countersunk acrylic plate 
4x aluminum standoffs 
8x M.25 screw, top socket head(4), and bottom countersink head(4)
THIS KIT DOES NOT INCLUDE THE KEYBOARD