For normal maintenance for one horse (12hh +) this size should be sufficient for approximately 6 MONTHS.
Because WBHO really works you only need to LIGHTLY paint the hoof. It is easy to apply and does not solidify in the cold of the morning or winter. Always shake the bottle (to mix oils together). Apply lightly to hoof with brush paying particular attention to the area on or just above the coronet band and do the entire hoof surface from top to bottom