The GripR is ideal for individual exercises but, as it's made to withstand the toughest of treatment by using micro grade steel sand within a double stitched neoprene bag, it’s also perfect for small group training sessions where it can be used for dynamic throwing and explosive catching drills. Progressive and suitable for a wide range ofusers. The steel sand displaces rapidly, so bags can be placed on the arms, legs and feet. Trains deep core muscles while adding an exciting and unpredictable element to your workouts - your body never knowswhat’s coming next. Our unique rubber printing treatment stretches with the fabric, ensuring it doesn’t crack or deteriorate over time. The GRIPR is made to withstand the toughest of treatment by using micro-grade steel sand within a fully-sealed, double-stitched neoprene bag, so the steel sand won’t leak. This means that it’s perfect for dynamic exercises and can fit into the toughest of training routines. EXPERT TIP The GRIPR trains deep core mus