Double prong guard, fits all IH 820 combineflex heads that use guards equiped with cross bar. Fits Gehl MA206A, HK108, HK440, also Case-IH 100, 110, 115, 120, 1190, 1290, 1490, 1590, 75, 210, 230, 275, 375, 4000, 5000, 5500 also New Idea 507, 509, 512, 514, 5107, 5109, 5112, 5114.