Blue Circle High Strength (40N) Ready To Use Concrete is a 20kg bag of pre-mixed concrete, ideal for both DIY and professional construction projects. The product provides high strength of 40N, making it perfect for heavy-duty applications. It is ready to use without any additional ingredients, ensuring ease and efficiency in your construction tasks. Blue Circles concrete mix exhibits excellent durability, withstanding harsh weather conditions and maintaining its strength over time. It is also eco-friendly, reducing carbon footprint.