UniSeal BlackSeal HT Nitrile Exam Gloves boast superior puncture and tear-resistance when compared to latex and vinyl products and can stretch up to twice its original length. Manufactured to be thicker, more durable and fit for heavy duty use, UniSeal BlackSeal HT provides the highest amount protection in the BlackSeal series. The signature black color for our BlackSeal product makes the gloves ideal for environments where stains like blood, ink and paint are preferred less visible.