Single battery on-off switch.
Has heavy-duty plastic housing with easy-turn knob. 4 removable knock-out plates for battery cables. Includes bottom cover. Rated for 300 continuous amps; intermittent 1000 amps/5 seconds; crank rating 700 amps/10 seconds up to 48 volts.
2-11/16"L, 2-11/16"W, 3-1/8"H.