Tree silhouette is to be inserted into the two holes in the base. Approximate size when mounted is 134 x 140 x 180 mm (5.3 x 5.5 x 7.1 inches). If having adhesion issues when printing silhouette, try the mouse ears version, removing them should be easy (but be careful and protect yourself if needed). Of course post a make if you print it! And, if you sell it, please let me know! I couldn't sell one, despite I thought it would be appreciated. Maybe the cause is it has no LEDs? ¯\_(ツ)_/¯