Three rows of ¾ square x 11 inch (1.9 x 28 cm) long spikes level residue, while the rolling basket reduces clod size and firms the seedbed. Basket pressures are adjustable and can be set up to 100 pounds per foot (149 kg/m). Baskets are available with flat bars (11″/28 cm diameter) or round bars (14″/35.5 cm diameter).