This is a cost effective well made and sturdy organizer. Except of the spacers which feel like high quality plastic, the rest of the unit is made up of black anodized sheet metal. The organizer I was pleased to find is fairly compact occupying about 87mm X190mm of bench top space yet it can hold up to 17 screwdriver--hex, phillips, flat or nut drivers. In the front there is a recessed rectangular pocket measuring 40mm X90mm X4mm (WxLxD) where one can safely store small screws and such to be installed/reinstalled during or after work. There is also a lower deck in the front at a height of 55mm with a 20 mm diameter circular and two rectangular (9mmX35mm) cutouts to store other tools/things. The kit comes with no instructions but by far is totally incomparable with a gig-saw puzzle. It really is a no brainer to match the parts of the assembly. It took me less than 15 minutes to do. Parts of the assembly are sized very well. Things go together very nice and tight with absolutely no slop or wobble in the assembled product.