The housing of this car relay is made of quality flameresistant material, fireproof and high temperature resistance, with stable working performance and long mechanical lifespan. All-copper coil, sufficient winding, with nice voltage withstand purity. Pure copper connection pin, all-copper material terminals, thickened silver contacts, with strong conductivity performance.Features:The housing is made of quality flameresistant material, fireproof and high temperature resistance, with stable working performance and long mechanical lifespan.All-copper coil, sufficient winding, with nice voltage withstand purity.Pure copper connection pin, easy to install, with greater load, and more safety to use.All-copper material terminals, easy to install, thickened silver contacts, with strong conductivity performance.Silver alloy contacts, with higher conductivity and higher sensitivity.Complete specifications, stable size, with high thickness and smoothness.Specifications:Name: Car RelayMaterial: plasticsType: 1pcs remote controller and 1pcs connector, 2pcs remote controllers and 2pcs connector (optional)Item size: 77 * 45 * 45mm / 3.03 * 1.77 * 1.77inPackage size: 97 * 91 * 80mm / 3.82 * 3.58 * 3.15inPackage weight:1pcs battery and 1pcs connector: 312g / 11.01ounce2pcs batteries and 2pcs connector: 411g / 14.50ouncePacking List (E23651-1):1 * Car Relay1 * Remote Controller2 * Copper Sheet1 * Wire Clip1 * Battery Clip1 * Insulation S-leeve1 * Connecting Wire1 * ConnectorORPacking List (E23651-2):1 * Car Relay2 * Remote Controller2 * Copper Sheet1 * Wire Clip2 * Battery Clip1 * Insulation S-leeve1 * Connecting Wire2 * Connector