The only thing I can tell you is that Ive been using Normal Self Adhesive velcro (double side) and 4mm plexiglass. Cut the whole thing with a Jigsaw and don't let any hole between the hoops.... make it full piece of plexiglass. Take a Heat Gun and heat up the lover part of the Plexi (about 4 inch from bottom) to accomodate the frontend-curve of the hoops. That's about it.... no worry, it is resistant enough, Ive been using it for 1 month before posting results!!!! It won't fly away!