Rubber Granules 1mm - 4mm Ideal for contact surfaces, use with our resin available in a separate listing. Use 80% rubber to 20% Resin mix Full Size Equipment: Dog Walk - 12 - 18kg Rubber 3 - 5kg Resin Seesaw - 4 - 6kg Rubber 1 - 2kg Resin A Frame - 18-25kg Rubber 4 - 6kg Resin