Patented ridge union design Universal ridge union works with most ridge tiles Pack includes ventilated ridge roll 100mm coated fixing screws guaranteed to last a minimum 20 years Dry fixing - Application in all weathers Quicker and easier to install over the cement alternative Plastic clamp Screws washers and clamps pre assembled for speedy installation Each kit contains: • 1 x 6m x 320mm ventilated ridge/hip roll • 10 x 50mm Ridge brackets • 13 x Ridge union seals • 13 x 100mm fixing screws and washer • 13 x Clamping plates Please note: Image shows metal clamps but these clamps are plastic.