Loctite Threadlocker Blue 242 is on WheelMaster wheel builds for the locking and sealing the nipples onto the spokesOnly use with dissimilar materials like stainless steel spokes with brass or alloy nipplesDo not use on steel spokes with steel nipples.5ml will do approximately 2 wheelsThreadlocker.5mlBlueUPC/EAN/GTIN: 079340242050