[DURABLE AND ] This battery master switch is made of durable heavy duty housing, tinned copper studs and nuts with 4 sets of bolts that help hold the switch tightly. A removable back cover protects the rear terminals from short circuits. Removable side panel for easy access to battery cord. [No Power Consumption]This battery isolation switch is a reliable way to turn off the power during maintenance, battery power consumption when no vehicle or ship is required, please disconnect the battery with confidence, it can be locked alone or together with other switches. [Easy Operation]Easy to install. For DC 12 - 48V system isolation and fixed electrical systems, the on/off position is clearly defined. Switch = power (green) to close the circuit, switch off = open circuit without power (red). [Heavy Duty Disconnect Switch] Disconnect switch has the advantages of preventing battery drain, preventing theft, power maintenance, etc. Completely enclosed to protect wiring from dirt, corrosion and rain. The switch is smooth but sturdy, secure in any position. [WIDE USE] Advanced battery disconnect switch for general use in cars, boats, boats, RVs, motorcycles, camping, travel trailers, trucks, ATVs, UTVs, battery banks and other electrical equipment. Also perfect for Father's Day gifts. color:Red black Material:plastic Package Contents: 1 x switch 4 x fixing screw 2 x copper nose