Package includes 12pcs 16mm cleaning swabs for APS-C Sensors AND 15ml Sensor Cleaner. Every sensor cleaning swab is made in a 100% dust-free environment and sealed in a vacuum package. Super soft and flexible swab head spreads pressure evenly across sensor to ensure no damage. The sensor cleaner is made from ultra-pure water to clean sensors without leaving streaks or blemishes. It is safe for both CCD and CMOS image sensors.