Chain and cable essential tool kit includes, Chain Alignment Tool, SlackSetter ProÖ, Cable Luber V3, and Chain Brush The Chain Alignment Tool body clamps squarely to rear sprocket so the alignment rod will indicate sprocket alignment to chain Cable Luber V3 makes it easy to efficiently lube control cables without a mess The double ended Chain Brush for cleaning chains and other components SlackSetter ProÖ accurately and quickly measures chain slack. KIT CHAIN & CABLE TOOLS