ALPHA ROLL is designed for faster and deeper heating of the bowl. It prolongs the smoldering of the coal, maintains its heat and allows you to control the temperature. The ROLL cap is great for nature: it will prevent the wind from carrying ash and sparks, and your clothes will be completely safe. ROLL is made of stainless steel and coated with heat-resistant powder paint. The carving is decorated with gold, silver or black rivets, and the walls are marked with a signature engraving.