DEK is a Czech group of companies with a long tradition, which is the largest supplier of materials and services for the construction industry in the Czech and Slovak Republics and also a leader in innovation in the sale of building materials. We supply services and materials for residential, industrial and civil engineering.

The Bad Ass beginnings (60 years ago) are actually all about you.Since we lit this candle, our singular mission has been to support the Bad Ass community – men and women of action rolling up their sleeves and living hard work every day.We combine technology with durability in a cord that’s built to charge your efforts. But it's just a cord until you give it power – and our cords come to life in pursuit of your most daring ambitions.We make the cord tough, innovative, dependable, unique, and capable.You Make It Bad Ass.