Material: AL 6063-T5; Color: Black; Slot: 6mm; Full Set Kit included: 2pcs 2040 V type Al extrusions 340mm, 3pcs 2040 V type Al extrusions 313mm, 2pcs 2040 V Type Al extrusions 440mm, 12pcs Corner Brackets(6pcs 2028 brackets plus 6pcs 2020 brackets for fixing uprights), 104pcs M5 x10 Button Head Cap Socket Screw, 10pcs M5 x 10 Socket Head Cup Screw, 6pcs M5 x 16 Socket Head Cup Screw, 110pcs M5 T nuts , 35pcs M5 Washer (silver color), 6pcs rubber foot, 2pcs Aleen Wrench.