Handy holder to fix to the side of your printer. Overall size of unit is 200mm long X 115mm wide X 28mm deep. Holes in to fit a set of 6 nozzles, 10 needle files, a couple of pairs of pliers, a scraper and a couple of small screwdrivers. There is a bin to put your offcuts of filament etc as well. Printed on a Robo 3d R1. Make sure your printer bed is big enough to fit it!!