This kit includes 15 small 16mm delkin sensor cleaning wands and a 025oz bottle of sensor solution this unique wetdry double sided wand eliminates all small dust particles and chemically bonded debris sensorsolution is specially formulated to leave no residue yet break the chemical bond that causes dirt dust oils and debris to adhere to the sensor sensorsolution when used as directed easily wipes away this quick drying formula is alcohol free and safe for all air travel