material Light weight and durability This is High quality of pure copper material Easy installation, Excellent fitment and Superior Material 1.Silver contact pin and QA-1/155 copper wire as coils reduce electrical losses and extend service life 2.Black plastic casing and encapsulated coil interior protect your solenoid valve from any adverse environmental effects 3. Tightly seal and securely seal, fully preventing dust, dirt, sand, and any other substances that may damage your solenoid valve. Product Function: High current relays are the most reliable and effective way to add secondary batteries to your system Type: High Current Starting Relay With 100a Fuse Holder Kit Condition: Fitment Type: Direct Replacement Type of coil latch: single coil latch Maximum switching voltage: 75 Maximum switching current: 500A Rated coil voltage: 12V DC Coil resistance : 100mmax 6vd 1a Fitment:Applicable products: automobiles, RVs, yachts, lawn mowers, etc Colour:As Shown Material:Pure Copper Package Contents: 1 x High Current Starting Relay With 100a Fuse Holder Kit 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.