This is a 3D print of resin, which can be normally machined (sanded, drilled), glued with instant glue and painted with common model paints (before painting, I recommend spraying with a primer).
I RECOMMEND soaking the accessories in hot water before removing the supports, drilling or cutting. Resin softens slightly and not CHIPPED. Without this heating, unwanted chipping can occur. After cooling, the resin regains its original hardness.
I will be happy to answer any questions.