Containers are half-filled with 10% neutral buffered formalin, for the collection and transport of tissue samples. High clarity virgin polypropylene container construction. Polyethylene screw caps included. 20-120 mL containers are 95kPa compliant. Each container is made of high clarity virgin polypropylene and includes a polyethylene screw cap. Small-sized prefilled formalin containers (20 mL and 40 mL) feature a click-top closure. The first click assures users the seal is fully engaged. The second click ensures 95kPa compliance. This click-top design prevents leaking formalin containers and ensures safe specimen transport. Containers sized 20 mL through 120 mL are packaged in transport packs with handles. This packaging design allows for easydistribution to other labs and doctors' offices. The inner packaging is made of chipboard material, and is safe for operating room use. Caps feature dual thread closures and a leak-resistant seal to protect specimens. All containers sized 20 mL through 120 mL are95kPa compliant. Packaging: 54/cs