The KUPO 20 inch C-Stand Riser tube in Black features double riser sections that are identical to the ones that come with the 20 Inch Master C Stands with Turtle Base. The base of this riser tube is designed to mount in a C-Stand Turtle base. It has an industry-standard Junior base of 28mm and on top it has a 16mm baby spigot. This C-Stand tube is a popular choice for use with a Tethertable. Combined with a set of C-Stand roller wheels to easily move around in studio. This Kupo 20" riser tube can also be used as an extension for large stands with a 28mm Junior receiver.