From 4990 Quick-fitting roundels, 5 pcs. Pay & Collect Submit your order now and collect your items at your local Biltema store in 2 hours! This is how Pay & Collect work Sanding discs with Roloc attachment. For high-speed sanding with e.g. pneumatic sanders. Coated in aluminium-oxide. Ø 50 mm. Fits holders 20-853 and 20-990.