General description The US PRO Lump Hammer is a robust double-faced sledgehammer designed for heavy-duty tasks. Weighing 2kg (4lb), it features a fibreglass handle that provides strength and durability, making it ideal for stoning and other demanding applications. Technical specifications Weight: 4lb (1.8kg) Length: 384mm (15 1/4") Drop forged head hardened to HRC 50-58 Handle composition: more than 60% fibreglass Other information 1 Year Warranty Patented method for fixing the head to the handle for enhanced security Non-slip finish for improved grip Polished face for better performance