WMN_TRULYSTEP New GUN Barrel Cleaner .17 22 30 40 & 6, 7 9mm 12 20 Gauge Rifle/Pistol/Shotgun Bore Cleaning We provide 20 Calibers of the cleaners, Welcome for retail and wholesale ; Buyer Can get a faster shipping service ( E-packet, 7~12 working days delivered , for USA only ) if you can order 20 pcs or more at one time ; Almost all of my customers are satisfied with the quality of the products ; The World&#39; s Fastest Gun Bore Cleaner ; Cleans gun bores in 10 seconds ; Weight : about 30g~70g per different calibers of cleaners ;