What Tumbling Media is the Best?

What is the best media to clean and polish your brass? I test some commercial products and some suggestions from the internet.Video shot with Hero 3+ Black1

Does anyone know what tumbling media would be best for removing small layer lines? : r/metalworking

Different Types of Tumbling Media

تامبلت Thumler's Model B Rock Tumbler

Wow

جستجو و پیدا کردن عقیق های گوناگون

Best Tumbling Media for Rust Removal - Inovatec Machinery

Ceramic Tumbling Media for Silver Jewelry Making - Polish and Smooth - (10oz)

Jewelry Tumbling Media - Inovatec Machinery

Cheap additive for corn cob media?, Page 4

ساخت تامبلت ساده Tumbler

سنگ های قیمتی چگونه برش - کوارتز فکتینگ(تراش فست)

Tumbling Media Selection Guide - Inovatec Machinery