Fibre concrete combination spacers are suitable for horizontal reinforcement and where structural elements are subject to extreme temperature variations. Spacers ensure that the concrete cover specified for structures and structural elements made of reinforced concrete is adhered to. Available in bags of 125 or 250, heights range from 35 x 40 x 50 mm , 45 x 55 x 60 mm and 50 x 60 x 70 mm.