The BD 309624 is a PrecisionGlide Tuberculin Syringe that comes with a 21G x 1″ needle. The syringe has a 1cc (cubic centimeter) low dead space capacity. It is designed for precision and smooth fluid handling. Each box contains 100 units of the syringe and needle combination, and each case comes with 8 boxes. The syringes are intended for single-use and are ideal for TB testing or other medical procedures that require precision and reliability.