ATC fuse taps are used to tap into an existing fuse box to add another circuit. For use with ATC | ATO size automotive blade fuses tap the hot side of automotive fuse blocks to add an additional circuit quickly and easily or tap into an existing car circuit to power a cellular phone stereo components etc. ATCs fuse tap push through design also prevents fuse box expansion issues. 24K gold plated. 100 per Pack., One Leg of Fuse Slides through the Tap, Bulk - 100 per Pack, Used to tap into an existing fuse box to add another circuit, 24K gold plated, , , , , , , Weight (lb)0.15, Height (in)0.75,Width (in)3,Depth (in)5