TEKTRUM 2.125" TALL Z BRACKET SOLAR FLUSH MOUNT KIT SUPPORTING LARGE & SMALL SOLAR PANELS- SET OF 4 The set includes 4 aluminum flush mount Z brackets, 4 stainless Steel screws and bolts; wide and thick metal design support both large and Small Solar panels 2.125 inch Height design allows the Solar panel to function at its maximum efficiency by supporting Solar panel at its optimal Height for bottom aeration Bracket dimensions - 2.125in (H) x 1.5in (w) x 2in (D); simple design allows do-it-yourself Solar panel installation in minutes