This listing is for one set of brand new CP Piston Rings for 99.5mm pistons 

For = SC7420 SC7425 SC7415 SC7433 

Included = Rings for 1x Piston 

Bore Size = 99.5mm 

Ring Thickness = 1.2mm x 1.2mm x 2.0mm 

Part Number = RS1658-3917-0