bed spacer for Monoprice Mini Select V2

Wanted to use an E3d V6 on my Select Mini v2 but didn't have a good way to bring the bed up to make up the distance of the v6 from the v5. These are 10mm round with a 3.5mm hole in the center and 4mm tall, you can place them ontop of the cup washer. you should also change the OEM bed screws out for 3mm X 20mm flat top hex head screws.