General description Suitable for holding AA, EQUIV or UM-3X4 size batteries, this 16 Pack 6V 4XAA Battery Container Shell Holder is designed for all 1/8 and 1/10 RC Nitro Power cars. Technical specifications Size: 57 x 30 x 28 mm (2.2 x 1.2 x 1.1 inches) Material: Plastic Color: Black Other information Package Contents: 16 x Battery Case Note: Light reflection and different displays may cause the color of the item to differ slightly from the real thing. The measurement allowed error is +/- 1-3 cm.