Packaged includes:
1 x fighting D-pad (add-on)
2 x analog pad

Length: 0.91 "
Height: 0.16 "
Width: 0.91 "
Weight: 0.18 oz

Length: 2.3 cm
Height: 0.4 cm
Width: 2.3 cm
Weight: 5.0 gram

To replace analog pad, just pull the original one and replace it with the new analog pad. To add on the "fighting D-pad), just stick it onto the existing digital directional buttons.