This Slick Silicone Lube comes in 3 different strengths for all your airsofting needs. Not only that, but each are delicately scented. Shooting your gun has never smelt so good. Buy all 3 and save more! Slim (see through in color): – Pistol Slides (Contact Surfaces) – Gas Blowback Nozzles Medium (yellow in color): – Ideal for the majority of all Airsoft components Thick (black in color): – Gas Blowback Magazine O-Rings – Gas Blowback Recoil Springs