Characteristic--- Two modes, Current overload disconnection and manual disconnection, After the circuit is repaired, the switch turns ON and the fuse holder can be used again. Features--- Always protect the safety of automotive electronics, Prevent car currents from being too high and damage automotive electronic equipment Quality control--- Car Audio Fuse Holders Pass professional electrical performance test and aging test, the switch button has passed full inspection, the switch button is smooth, there is no stuck state, please rest to buy Color: As shown Material: plastic Package Contents: 1* circular self-resetting fuse circuit breaker 1* square self-resetting fuse circuit breaker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.