Dear，Pls leave a massage to tell us what design (Color) do you want.thank you.

Features:Brand new and high quality.Model : Arduino Uno(ATmega328).Microcontroller : ATmega328P-PU.Operating Voltage (logic level) : 5V.Input Voltage (recommended) : 7.2-11.1V.Input Voltage (limits) : 6-20V.Digital I/O Pins : 14 (of which 6 provide PWM output).Analog Input Pins : 8.DC Current per I/O Pin : 40mA.DC Current for 3.3V Pin : 50mA.Flash Memory : 32 KB (ATmega328P-PU) of which 2 KB used by bootloader.SRAM : 2 KB (ATmega328P-PU).EEPROM : 1 KB (ATmega328P-PU).Clock Speed : 16 MHz.Size:6.9cm x 5.4cm - 2.72inch x 2.12inch.Package Included:1 PCS ATmega328P-PU Module NO Retail Box. Packed Safely in Bubble Bag.