Mirafit Mirafit Cast Iron 1″ Tri Grip Weights. Solid cast iron construction. Weights range from 1.5kg to 25kg. Tri grip design makes them hassle free. Suitable for all 1″ weight bars. Use on a bar or individually. Mirafit Cast Iron 1″ Trui Grip Weights. Available at mirafit.co.uk Mirafit