Dreve BioBleach Soft is a transparent thermoforming blank made of ethylene-vinyl acetate (EVA) with a hardness of 95 Shore A. For the production of soft, bleaching splints extending the gingival margin. Use BioBleach Soft for: Bleaching trays with high wearing comfort Key Features: Soft elastic Does not bond to self-curing resin Transparent/Clear Pack of 20 1mm thickness