The HOMEBRIGHT Compressed Gas Electronics Air Duster is a dust blower specifically designed for cleaning keyboards and electronics. Each can weighs 0.5 lbs and contains 2oz of compressed gas, providing a powerful and efficient way to remove dust and debris from sensitive equipment. This product comes in a pack of three cans, ensuring you have an ample supply for all your cleaning needs. Made by the brand homebright and manufactured in China, this dust blower is a convenient and effective tool for maintaining the cleanliness of your electronics.