BNCWCQZ Small Glass Shaker Bottle, 2 Pack 16oz BPA Free Odorless

What the brand says

Sold as “BNCWCQZ Small Glass Shaker Bottle, 2 Pack 16oz BPA Free Odorless Shaker Bottle with 304SS Mixing Ball and Removable Cleaning Brush for Fitness & Protein Shakes(Black-2Pack)”