Hardwood Test Tube Rack for 12 Tubes, 22mm Rod Size_23.6" 5x clear views through a

5x clear views through a 3-inch optical-glass lens with a 6-inch focal length

Cork-lined stainless steel safety flask tongs lock jaws around flask necks to prevent accidental drops during transfer of hot distillation vessels between bench stations

and amplitude

Six-piece laboratory-glass barware set bundles beaker shot glasses

sized for the next step up from the 100uA meter when small-signal circuits exceed its full-scale deflection

Hardwood Test Tube Rack for 12 Tubes, 22mm Rod Size_23.6" 5x clear views through aPolished hardwood test tube rack with a traditional two tier design, holding twelve tubes up to 22 mm diameter for classroom and professional bench setups.