The universal type quick couplers were created with the goal to be able to pick up the original bucket with a quick coupler instead of having the bucket fixed mounted on the arm. Since the pin diameter, pin distance (C-C) and arm width varies between different excavator brandsand excavator models the universal quick couplers can handle different pin distances, c-c and widths within certain limits. This type of coupler is common in Anglosaxon influenced countries like the UK, the US and Australia. Lately Symetrical couplers have started to gain market share also on these markets. Symmetrical Quick Couplers are sometime called S-type couplers.