This kit contains almost all the electronic components and hardware needed to build the CS7.2 AI Case Sorter project except for a 12v DC , 5 Amp Power Supply which you will need to buy separately. If you buy this kit, you do not need to buy stickers and a light ring which are already included. Included in this kit are the following items: Key Components MPU Controller Main Board (1) MPU Box Label (1) PNP-NO Proximity Sensor (LJ8A3-2-Z-BY) (1) Pre-Assembled Classifier Homing Sensor (1) Optical Sensor (sorter homing) (1) Pre-Assembled Camera Module (1) 12v Case Fan (1) Nema17 Motors (2) Motor Cables (2) Sensor Cables (2) Miscellaneous Small Parts .5x5x30mm Stainless Steel Tension Spring (2) M3x5x4 Heat Set Threaded Insert (2) M8x1.0 Heat Set Threaded Insert (2) M3x6mmx0.5 Stainless Steel Washer (8) M3 Hex Nut (10) M3x3 hex Set Screw (8) M5 Flange Coupling (2) M3 hex key wrench (1) 626zz Bearings (4) 0.3x4x20mm Compress Spring (2) Bolts & Screws Socket Head Cap Screws M6x80mm (2) M6x30mm (11) M5x20mm (2) M4x8mm (2) M3x18mm (4) M3x16mm (2) M3x12mm (4) M3x8mm (10) Flat Head Phillips M3x6mm (1) M3x8mm (1) M3x18mm (4) M3x14mm (4) Pan Head Phillips M3x14mm (4) M3x12mm (8) M3x5mm (12)