These biopsy punches offer the convenience of single-use disposability without sacrificing quality, feel, or performance. Plunger-system models are available in five sizes and offer the added benefit of effortless ejection of lodged speciments. Non-plunger-system models are available in ten sizes for a wide range of procedures. All punches feature seamless, stainless-steel, razor-sharp edges to eliminate torn or pulled biopsies. Ribbed handles provide comfort and control. Punches are color-coded with sizes clearly marked. Sterile, five-year shelf life.