Green Paste is a highly abrasive stropping paste, and is coarser than Red Paste. It is great for bringing a slightly dull edge back to sharpness. Follow the Green Paste with the Red Paste and then stropping on plain leather to finish the job. Or, if you have the Red / Black  Paste (155) use the Red Paste followed by the Black Paste and then plain leather for the smoothest of transitions.

Stropping pastes are best used when your razor has just started to go dull, and just needs a little touching up. Using them will help you maintain a shave ready razor longer without needing to get them honed.