opel astra J cup holder bin

Simple bin to convert Opel Astra J cup holder (the first one, near gear knob) into small bin for random objects like coins, cables ecc... i use it to store my e-cigarette without it falling into the oblivion of other cupholders. It fits but it's not tight, better to add a pair of pieces of dublesided tape on the outer side of the bin, then it will stay super tight. I printed with 1mm wall thikness, maybe it's tougher with 1.5mm