Review on Stainless Steel PGN Bearing Balls by Nathaniel Collins

These are the ideal size and weight to add to liquid acrylic and liquid watercolor bottles to make them shake more efficiently (especially Radiant Watercolors Dr. PH Martin and their liquids). acrylic bottles and Liquitex acrylic paints). It's also the perfect size for large spray bottles of dye-based ink like Dylusions. They are too big for the smaller plastic dropper bottles (like those included in Reinkers).