Hardwood Test Tube Rack for 12 Tubes, 22mm Rod Size_23.6" this decade resistance box substitutes

this decade resistance box substitutes for fixed resistors in circuit experiments

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

and amplitude

Triple tandem plastic pulley with 25/38/50mm ball-bearing wheels on an open-sided 17

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

Hardwood Test Tube Rack for 12 Tubes, 22mm Rod Size_23.6" this decade resistance box substitutesPolished hardwood test tube rack with a traditional two tier design, holding twelve tubes up to 22 mm diameter for classroom and professional bench setups.