It is a manual power source and manufactured in China. The manufacturer part number for this wheel weight is FN010Z.
(25) WHEEL WEIGHTS, FN STYLE, 30 GRAM ZINC, FN030Z
(25) WHEEL WEIGHTS, FN STYLE, 20 GRAM ZINC, FN020Z
FN Style Coated Lead Wheel Weights FN 5 Gram/ 25 PER BOX
10g Steel Clip on Wheel Weights - FN Profile (25/Box)
Plombco REGS-0.25 Wheel Weights 0.25 Oz Each - Box Of 25
Plombco MC-2-25 Wheel Weights 2.25 Oz Each - Pack Of 50