This keyboard wrist rest is printed in 2 pieces which snap together. Printing horizontally leads to rough lines on the top surface (which does look good and provides some grip) due to the slope.  

Printing

• 0.20mm layer height
• 10% infill
• Support required (if printed horizontally)
• 0.40mm nozzle
• Enable ironing for a better finish
• Designed with a 0.30mm tolerance

The default size is 280mm x 55mm x 15mm. (The slope is 10mm to 15mm). Adjust the scale according to your needs.