The roller is designed to be pulled behind the cultivation machine equipped with coupler. Roller consists of two rows of corrugated discs with a diameter of 470 mm is an ideal supplement in tillage by cooperating with subsoilers equipped with a coupler (U 602, U 608 and U 632). It may also provide support to the disc harrow U 693. Cooperation with disc harrows and subsoilers on stubble significantly improves the final effect on the cultivated field. Rollers overlaps each other and creates self-cleaning effect.