Premier Uni-Punch® Seamless Disposable Biopsy Punch Sterile, disposable skin biopsy punch for obtaining exact dermal tissue samples. Available in 9 different sizes 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 5.0mm. 6.0mm and 8.0mm. Features & Benefits: