Description: Made of quality borosilicate glass, lead free With 24/29 inner joint which can be fit for any apparatus with 24/29 outer joint With a compression cap Fit with thermometer or tubing Used as a syringe port for thermomter Specification: Inner diameter: 16mm Outer diameter: 20mm Full Length: 9.5cm Package Includes: 1 Piece 24/29 Thermometer Adapter Note: Please allow 1-2mm inaccuracy due to manual measurement. Thanks