Laboratory Wooden Test Tube Rack With 6 Holes and 6 Pegs

1.Made of Rubber. 2.For Round Bottom Flasks 3.Size:90mm 4.Color:Black or red

1.Matreial:Hard Wood 2.With six holes 22mm diameter, ideal for classroom work and 6 or 6 draining pegs, easy to asemble for use or disassemble for storage. 3.Size:300*65*90mm,dia22mm*8 holes

1.Matreial:Hard Wood 2.With 24 holes 22mm diameter, ideal for classroom work and 24 or 24 draining pegs, easy to asemble for use or disassemble for storage. 3.Proguct size:41.5*9*9cm

With grid tops, provide uniform heat with no back flashes. One piece nickel plated venturi tube to thoroughly mix air and gas.

With threaded needle valve,air regulator and alumiunm mixing tubes for thorough air/gas mixing,nickel plated,die-cast zinc alloy base.