Editorial Review Obenauf's Heavy Duty LP 4oz - Preserves and Protects Leather - Made in the US - -With regular use, boots last noticeably longer and stay comfortable even in extreme conditions.-This preservative is made in the US, and proven excellent quality since 1986.-Great for boots, car leather interior, or really any leather product!-Obenauf's Heavy-duty LP preservative is a blend of leather oils that gradually seep into the leather lubricating it continuously.