Strong stainless steel construction and polished sharp cutting tips make these Rosenthal needles a popular choice for bone marrow aspiration and biopsy for both hematologists and veterinarians. These are non-sterile, autoclavable, with thick-wall cannulas and matched bevel stylets to make bone puncture easier. Top quality made in Switzerland by the premier Swiss needle manufacturer. This is an unbeatable price that won't last long. While supplies last! Sold by the each. Choose your gauge from the drop down menu below: Rosenthal Bone Marrow Biopsy Needles, 1-1/2" Lengths ROSN1-5Regular price: $21.95Sale price: Gauge: 20Gx1-1/222Gx1-1/2 100% SATISFACTION GUARANTEED OR YOUR MONEY BACK. See "Policy" page for details on our guarantee and returns policy. Ordering security provided by Yahoo's SSL encryption technology, the #1 security system on the internet.