The best in durability for outdoor use with a stylish 3D look . Our metal letters and numbers came in silver or gold with a high gloss anodization that stays bright in any environment for many years, even harsh atmosphere or saltiness does not change the shine. Application is simple with a very strong and durable self adhesive pad. The elegant and clean HELVETICA style is available in 20mm, 30mm, 50mm, 100mm height.