This replaces the normal small blue clamp clip underneath and around the tube coupling collet for the Ultimaker2. It forces the collet to lock the tub...e in place much better.
After printing you only need to get a 6mm drill through the hole for the finishing touch.
Make sure the bed is well glued with the glue stick.
Printed in PLA.
Update (3july2014)The first upload was 2.5mm thick.Now also uploaded other heights like 1.25, 1.5, 1.75, 2.00, 2.25 and 2.50mm