Specifications:The kit contains prototype printed circuit boards, wiring boards, and female sockets.The structure is compact and consists of screw terminals, high-quality printed circuit board carriers, and FR-4 printed circuit boards.The terminal module adopts high-quality materials and undergoes fine process treatment with long service life.It is not assembled and can be used flexibly with various installation methods. Type: Shield Board KitMaterial: PCBShield Compatible for: for Arduino MEGA-2560Features: High Performance, Shield Module, DurableSize Details:Circuit Board Size: 12.024cm x 7.72cm/4.73" x 3.04" (Approx.)Pads Grid Pitch: 2.54mm/0.1", Hole Diameter: 0.8mm/0.03" (Approx.)Wiring Board Pitch: 3.5mm/0.12", Hole Diameter: 1.2mm/0.05" (Approx.)Terminal Block:Pitch: 3.5mm/0.12" Mini Terminal Blocks, Total 84 Pins (3 Pins x 24Pcs, 2 Pins x 6Pcs)Female Header Socket:Pitch: 0.1"/2.54mm, Pin Length: 15mm/0.59" (Approx.) Notes:Due to the light and screen setting difference, the items color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement. Package Includes:1 x Circuit Board7 x Pin Headers (Single Row: 10 Pins x 1Pc, Singal Row: 8 Pins x 5Pcs, Dual Row: 18 Pins x 1Pc)30 x Pins About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.