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The 140x440x215mm Tarmac Topcrete Standard Hollow Block (7.3N) is an essential building material for construction projects. This robust block is made from high-grade concrete, offering impressive strength and durability. Its hollow core design allows for efficient thermal insulation, making it a practical choice for various applications, including wall and foundation construction. The Tarmac Topcrete block is easy to handle and install, offering a cost-effective solution for both professional builders and DIY enthusiasts.