This is a softbox diffuser for a basic consumer flash.  This softens the shadow lines produced from using a  flash.  My large Canon 580EX speed light fits with a Stofen omnibouce attached. 

There are pockets to attach a 1/4 x 20 threaded nut, and attach this to a tripod, or a bolt can be inserted to attach a 1" ball mount (my preferred way to position lights). 

The diffuser screen is 0.4mm thick, you can make it thicker or thinner in bambu labs, but two 0.2mm layers seems ideal.