The Starter Kit 1 2 3 brings you three of our most popular products in one convenient cleaning kit. The Grunge Brush is our most popular cleaning brush because it is super durable. Its stiff bristles break up grunge and grime. Use the u shaped end to clean your chain and chainrings, use the tail end to clean in your derailleurs and around the drop outs and between the bottom bracket and chainrings. Multi Degreaser is a super strong cleaner use it with the Grunge Brush that breaks up grease and grime fast. Its 100% biodegradable, super low order, and safe with all plastic and rubber parts so its safe to use anywhere. DRY Lube is our most popular lubricant that keeps your parts moving smoothly and lasting a long time without attracting dirt and grunge.