Scope of delivery: Set of 2 12v 24v Battery Terminals (1 plus + 1 minus) / 12v 24v Brass Battery Terminals with M8 Screws Wing Nuts Quick Connector - Suitable for standard 12V and 24V batteries, such as car battery, truck battery, solar battery (photovoltaic) - ideal 12v and 24v battery connector The 12v and 24v car battery terminals are marked (+) and (-), we recommend using a little pole grease when assembling the Battery Terminals for Car, Camping, Solar Battery Battery Terminal / Battery Terminal 12v 24v has a minus diameter: 17.5 mm and Diameter plus: 19 mm - The 12v 24v Battery Terminals with wing nuts have a secure and quick connection thanks to a screwed cable The anti-corrosion alloy increases the service life, ensures good starting behavior (especially in winter*) as well as the conductivity of the battery terminals The Battery Terminals are suitable for a cable diameter up to 12.5 mm or 120 mm² - Installation recommendation: fix the 12v 24v battery terminal pole with max.