compatible with all gypsum based plasters (hand and spray applied), traditional sand & cement renders and insulated rendering systems. replacement speedskim blade - 1mm thin lightweight flexible plastic blade for fine finishing of plaster, drywall & tape and jointing. comes complete with integral blade guard and spare end caps. with its unique flexibility the ox speedskim system™ out performs all other conventional feather edges and darby’s, allowing the plasterer to achieve flatter, faster finishes. hugely increases metreage output reduces the harmful effects of fatigue and rsi.