The Ajax Scientific EL020-0001 battery holder holds one AA size battery (sold separately) and has 5" lead wires for connection to electrical components. The red and black color-coded leads identify the circuit polarity. The package contains 10 battery holders.

Ajax Scientific distributes scientific equipment, supplies, and instruments for industrial, research, and educational applications. The company, founded in 1984, is headquartered in Toronto, ON, Canada.