The price is for a complete engine set i.e for a single cylinder engine it is a single ring for a twin or quad cylinder engine it is 2 or 4 rings. The price is automatically adjusted whe nyou select your engine.
Gapped- The ring ends are filed to 0.001" gap ready to install.
Ungapped - the ring ends are left for the customer to file.
We strongly suggest selecting gapped unless you are very experienced with seating rings.