These are the 4 tumblers I use, the small orange one is dang near useless the others work equally well.
For cleaning dirty brass I use walnut media from either a pet store or a finer walnut media from Harbor Frieght that they sell for their sand blaster. For a cleaning agent in the media I have had great luck useing Nu Polish car polish. For cleaning lube off sized rifle cases I use dry croncob media. I also use a timer connected to a power strip to turn them off, no more forgetting and have them run for 2 days
