Need device to pull through bore so can't push with standard rod. Past that its hard to use at first but,it does clean well and eliminates the need for patches so save time and money in long run if you have pull through cleaner and can use rod to pull rather than push which means being very careful not to scratch bore when setting up.Also a bit over priced for a piece of rubber but,works and has a "cool"factor.
Pros: gets bore clean and eliminates patches
Cons: Not easy to use and must pull through bore
This review was written in the old system and had content requirements that are different than reviews written today.