Review on Power Up Your Vehicle With InstallGear'S Power Distribution Block - 0/2/4 AWG Gauge & 1/0 Gauge In To (2) 4/8 Gauge Out, Perfect For Auto, RV, Motorcycle And Boat by Gary Zielinski

Used for a car stereo installation. Easy to install and secure fittings. Beefy hex screw for the heavy duty input and staggered hex screws for four distribution connectors. The plastic cover snaps on but the lack of a screw down connector for the cover is less than ideal. If the cover had a more secure fitting than simple plastic snaps it would get 5 stars. As is, I have taken some safety measures to ensure my car doesn't go up in smoke.