【Professional Camera Cleaning Kit】-Used for cleaning grease, fingerprints, stains and dirt on camera lenses, microscopes, telescopes, glasses and other precision optical lenses. 【Sensor Cleaning Swabs】-Absorb and remove invisible particles and dirt. Compatible with APS-C sensor. 【Air blower】-The blower will guide the air flow to blow away dirt and dust from the lens or camera sensor. 【Hard Shell Protective Case】-Tidy up all cleaning kits and other accessories and protect them to avoid accidental collisions when outdoors. 【2in1 Lens Cleaning Pen】-Lens pen should avoid pressing hard on the lens stain during use to prevent damage to your lens! When using it, it should be gently moved in a circular motion along the stain. Do not use excessive force. In case of stubborn stains, please cooperate with other cleaning tools for cleaning. [Dry CCD sensor swab] When using CCD sensor swab to clean the sensor, a small amount of spray cleaner should be sprayed on the cleaning stick's cloth head first. Do not rub the sensor forcefully back and forth during the wiping process. Otherwise, there is a risk of damage to the sensor!