Labasics Support Retort Ring Set, 3 Pieces Iron Lab Support Ring with Boss Head in Diameter 60mm 80mm 100mm for Laboratory Experiment, Sturdy Corrosion Resistant cocoon the cleaning brush is lightweight

the cleaning brush is lightweight and portable

Reversible black and white stage plate provides contrast with light- and dark-colored specimens

The cable is also bidirectional and can be used from the connection from a DisplayPort computer to a USB-C enabled display

so there's no need to guess what your fitting size is

Labasics Support Retort Ring Set, 3 Pieces Iron Lab Support Ring with Boss Head in Diameter 60mm 80mm 100mm for Laboratory Experiment, Sturdy Corrosion Resistant cocoon the cleaning brush is lightweightLabasics Support Retort Ring Set, 3 Pieces Iron Lab Support Ring with Boss Head in Diameter 60mm 80mm 100mm for Laboratory Experiment, Sturdy Corrosion Resistant Description Cast iron support ring with boss head clamp and thumbscrew. Set comes with 3 retort rings in different diameters: 60mm, 80mm, and 100mm (one for each diameter) can securely hold various sizes of bottles and instruments. Made of medal, ensuring it durable, corrosion resistant, rust