Flexovit hook amp loop sanding discs flexovit 69957389891 these eccentric sanding discs from flexovit are made from tough and sharp high performance aluminium oxide combined with a heavy paper backing which makes them extremely durable and long lasting they have 8 perforated holes to fit sanders with 8 dust extraction holes flexovit 69957389891 hook amp loop sanding discs 125mm extra fine 240g pack of 6