Main areas of use Wooden dowels with glue pockets and ribs along the sides for perfect fitting. 100% twist-proof from the very first DOMINO dowel. DOMINO made of sipo wood, resistant to insect and mold infestations, is therefore best suited for outdoor use. Suitable for DF 500, material: sipo, made of mahogany. Weather-resistant, SB-packaged, all-inclusive warranty http://www.festool.se/service