Thermo Scientific N15133 SMART 2 Small Tube Plastic Tip Dispensing Cassette Thermo Scientific Thermo Scientific N15133 SMART 2 Small Tube Plastic Tip Dispensing Cassette. -includes an advanced built-in tracking system, providing easy, reliable traceability for cassette usage. -Condition is New. -Shipped with USPS First Class Package. -High Quality