Cases are no longer included with the insert kits. We hope to have cases again soon but only the inserts are included with the kit at this time.These are the original insert kits that prompted the industry wide multiple bore barrel CRAZE Each aluminum insert kit includes the following bore sizes:.679.682.684.687.689.691.693.695Basically youll NEVER be without the right size insert These are probably the most comprehensive kits in Paintball You can mix and match different size and color tips and backs as well to literally make hundreds of combinations. Own 2 different markers No problem you can have seperate freak backs and use the same inserts and fronts Type: Barrels