Features: Breadboard and T-type expansion board make the experiment more convenient. You can connect all version raspberry of the board to various sensors and electronic components with the GPIO extension board. A T-type expansion board, 800 Tie Points Solderless breadboard, 40 pin male to female to male Rainbow Cable and 65pcs breadboard jump wires. Raspberry Pi 4 4GB Model B with 1.5GHz 64-bit quad-core CPU (4GB RAM). This Holder kit is designed by Kuman for the Raspberry Pi and for Arduino hobbyists, the holder is large enough for a Raspberry Pi 4B/3B+/3B, and a 800 hole Circuit Board breadboard. Package Includes: 1 x Mounting plate 1 x MB102 Breadboard 65 x Jump cables 4 x Screws 4 x Nuts 4 x Gaskets 4 x Adhesive rubber feet Specifications: Material: Acrylic Dimensions: 18 x 14.3 cm/ 7.09 5.63 in Used for: Raspberry Pi 4B / 3B + / 3B Breadboard: MB-102 800 ponit note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you