Postfix, the specially designed fast setting concrete perfect for all your post erecting needs! Whether you're working with wood, metal, or concrete posts, this versatile product is ideal for the job. Simply mix with water according to the instructions printed on the bag, and watch as it sets in just 5 to 10 minutes. With a strength of more than 20N/mm2 after 28 days, you can trust that your posts will be securely in place for the long haul. Whether you're working on a fencing project, a deck installation, or any other landscaping endeavor, Postfix 20kg is the reliable and efficient solution for your concrete needs. Don't settle for anything less than the best when it comes to your landscaping materials - choose Postfix 20kg for a strong and long-lasting result.