uxcell 7/16-inch PA Nylon Solid Plastic Balls, Precision Bearing Ball 25pcs industrial2 (Red Blue)These two colors are

(Red Blue)These two colors are easy to identify

diode and audible continuity test

Presta & Schrader Compatible

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uxcell 7/16-inch PA Nylon Solid Plastic Balls, Precision Bearing Ball 25pcs industrial2 (Red Blue)These two colors areuxcell 7 16 inch PA Nylon Solid Plastic Balls, Precision Bearing Ball 25pcs Description: PA plastic (also called Nylon) is a material with good alkali resistance, which is suit for use in petroleum products and neutral chemicals. Bearing balls are used in applications such as drawer slides, precision bearings, pumps and valves, check valves, flow meters, and measurement instruments that operate in aggressive environments. Nylon bearing balls are