This listing is for a pack of two top quality, industrial grade pressed steel hinges. As fitted as an OEM part by many truck/trailer manufacturers but also popular as a high quality alternative on motorhomes, caravans etc... Designed to be surface mounted with four 6mm mounting holes. 180 Degree Opening. Zinc plated for corrosion protection. 65mm Tall and 75mm Wide. (When open) 18mm Tall.