The Black Grab comes with a capability to handle stone blocks up to 250 kg in manual filter. The manual filter is also embedded a self-leveling suspension point for lifting uneven loads. Its adjustable clamp width might be extended to suit various stone thicknesses from 300 mm to 1000 mm. The product has 1130 mm length, 132 mm width, and 232 mm height with 14 kg weight. It is also supplied with a rubber lined clamping faces to avoid damage on its surfaces.