Hira-To Hook and Loop genuine replacement discs COMPLETE SET. One of 80, 60, 30, 15 & 9 micron These are HOOK AND LOOP (Velcro) Discs £11.25 Quantity: at £11.25 each Add To Basket These are HOOK ands LOOP (Velcro) discs. Price is for a set of five discs. One of 80, 60, 30, 15 & 9 micron It is important to change these at regular intervals to prevent overheating. We normally change every 20-30 pairs of scissors sharpened.