The plywood frame parts are fine and once assembled forms a good base for acoustic tiles. But given that the frame alone weighs 3kg and tiles such as the Vicoustic cinema rounds (4) add to this, the included fixings are unsafe and more suitable for hanging pictures in a dolls house. I can’t imagine how this passed safety regulations given the potential risks to children, pets and furniture etc. I’ve replaced these with two mirror plates attached to the top and one at the bottom of the frame and then used wall fixings which, given the price, the manufacturer should have included. Any flat pack product from the likes of Ikea etc would have done.