Hanson Postfix® Concrete is a quick-setting, ready-to-use blend of selected sand, cement and additives formulated for fixing wooden, concrete and metal posts. This 20kg bag of Hanson Postfix® Concrete is ideal for all types of fencing projects in your garden or on a larger scale. Designed to be simply mixed with water, it sets in approximately 5 to 10 minutes and reaches walk-on strength within one hour, making it an efficient choice for DIY enthusiasts or professionals alike.