CORE POLICY All rebuilt heads are sold on exchange basis. Cores must be accompanied with an invoice number. Head cores must be together and complete. Head cores must be the same model as supplied. No attempt to repair cracked head was made. Core head must be returned within 60 days of purchase. All cores must be evaluated before a refund can be made. A minimum half refund is guaranteed on complete core returned. Heads must be returned prepaid and in box of origin.