BLisle 21700 Wrinkle Band Ring Compressor ReviewbP PP Lisle 21700 Wrinkle Band Ring Compressor PWrinkle band cuts friction in halfPRings slide in easilyPCAM operated - set adjustment screw just once for entire set of pistonsPInsert a full set of pistons in half the time, with half the workPWrinkle band can't slip down into cylinderP