Pair with most BB sockets and wrenches, providing slip-free performance during both removal and installationThreads together with the Pro BB Socket Cup for a double-layer defense: prevents slipping off the BB or sliding further on, keeping your frame and fingers safe from accidental damageCrafted from heat-treated tool steel for exceptional strength and long-lasting durabilitySocket HolderBlack6460215UPC/EAN/GTIN: 790983298937