BOSH "spark plug": strong relief; old technology. Super glossy! EnamelSignature quality! wonderful famous enamel sign - yellow bosch sparkplug! Heavier than you think! Garage sign, outdoor use UV-stable/color-stable Dimension: 600x400mm Weight: 2,5kg Enamel sign, high quality, with traditional way of production like the originals. The sign is put into the 800•C oven with every colour. Enamel - both sides. It is a traditonal production process by successive layers of enamel, every color alone, same method as it was with original enamel signs from 1950s. Handmade. Very labour intensive. Convex-intensive type sheet of metal - hammered by hand. Hand stenciled - expressive relief. Standard 1.2mm thick sheet of metal + enamel layers Tracked shipping, perfect safe packaging. Disclaimer: For orders shipped outside the European Union, I want to leave absolutely clear that we do ship from Czechia, which means that if the package is sent to any country outside the European Union, and/or inside EU that has special tax agreement (example: Canary Islands), it might be stopped in your local customs and they might ask you to pay taxes. This is a customs legal procedure and it is completely out of our control. Thanks for your understanding.