OFFERED IS THE NEW X9794 1 PACK OF 4 BUFFERS ON TWO BUFFER BEAMS. PLEASE BE AWARE THAT NO SPRINGS ARE INCLUDED IN THIS OFFER - THE SPRINGYNESS OF THE BUFFERS IS ACHIEVED BY THE USE OF 'SPRINGY' PLASTIC BARS. ASSEMBLY TO SUIT THE NEW PULLMAN OBSERVATION COACH BUT MAY ALSO BE USED ON SOME OTHER COACHES FOR REPAIRS/URGRADES.