Solu &reg;Max7219 Dot Matrix LED Display DIY Kit SCM Control Module for Arduino Pic// Max7219 Dot Matrix Module MCU Control Display Module DIY Kit for Arduino//diy Max7219 Red LED Dot Matrix Display Module for Arduino Usually, you will get it actually in 9~19 days, If you are in the USA and the item is NOT Fulfilled by Amazon. the item will be sent to you by USPS with shipping information from China. The estimated delivery time offered by Amazon is not the real time. Your patience is highly appreciated. Hope you will receive your item soon and enjoy using it. About us (Solu ), Professional factory of circuit boards for Arduino.A single module can drive one 8x8 common cathode lattice with 4 fixing screw hole, aperture 3mm, can use our M3 pillars fixed ,it is easy for installment. Module with input and output interfaces, supports multiple modules cascade module size: 5 cm long and 3.2 cm wide X X 1.5 cm high