Printed in black ABS at 0.2, Very thight fit.If you want to print it in ABS, You'll have to scale up the part to compensate for ABS shrinkage. I've learnt it the hard way, I didn't do it and had to use a hair dryer to heat the part and the M42 thread (on the Meyer optik - gorlitz 135mm the m42 thread can be removed) to press fit it.