The set of FESTA ring spanners includes an organizer, sewn from a very durable and strong fabric with eyelets for hanging. Socket combination spanners are made of high-quality chrome-vanadium steel fittings. This steel is tempered to the required properties and surface treated with matt hard chrome to achieve optimal surface hardness and resistance to corrosive influences. The quality, hardness and accuracy correspond exactly to the DIN838 standard. [***]