The flag of Bolivia consists of three horizontal stripes of equal height, arranged in the following order from top to bottom: red, yellow, and green. The aspect ratio is 15:22. Here are the color codes for each stripe:

1. Red - Pantone 186 C; HEX #d52b1e
2. Yellow - Pantone 116 C; HEX #fcd116
3. Green - Pantone 347 C; HEX #009a49

There's no specific official size for the flag, but it should maintain the aspect ratio of 15:22. For example, a common size would be 750mm x 1100mm (15 units x 22 units).