The OX Speed Skim Stainless Flex Blade is compatible with all gypsum based plasters (hand and spray applied), insulated rendering systems as well as traditional sand & cement renders. The OX Speed Skim Stainless Flex Blade has an ultra-fine 0.3mm stainless steel blade that gives a fine finish to plaster, drywall & tape as well as jointing procedures. The Speed Skim Stainless Flex Blade has a supreme build quality and comes with an integral blade guard and spare end-caps. With its unique flexibility the OX Speed Skim system outperforms all other conventional Feather edges and Darby's, allowing the plaster to achieve a flatter, faster finish with ease.