Dynarex Sterile Specimen Collection Containers are constructed of high density polyethylene and ideal for any laboratory or medical institution. The Collection Containers are perfect for single-use urine specimen sample collections as well as single-use biological collections. The Sterile Specimen Collection Containers feature labels with space for doctor and patient information, and molded graduations in ounces and milliliters, with a capacity of 4 ounces (100 ml). The Dynarex Sterile Specimen Collection Containers are latex free and sold in cases of 100. The 4254 Sterile Specimen Containers are sterile inside and packaged in bulk. Whereas, the Dynarex 4253 Sterile Specimen containers are available in sterilized individually wrapped packages. 2.75" high. 2.25" wide. Screw cap. 4 oz. Specimen Containers, 4 oz. bulk, n/s - 500 per case.