Bases, Retort Stand, Tripod/A shape C-12150Iron, stoved enamel finish, with threaded hole for rods, without rod.Tripod Shape A Type Bases, Retort Stand, Rectangular C-12155Cast Iron, painted, with threaded hole for rods. Without rod.Base Size(cms) 16X10 20X12.5 25X15 30x20Bases, Retort Stand, Pressed C-12170Rectangular, pressed steel, epoxy coated.Base Size (cms) 15 x 10 20 x 12Bases, Retort Stand, Rectangular C-12160Bases are made of mild steel plate hammer/epoxy coated and a hole for rod. Fitted with leveling screw and feet.Base Size(cms) 15x10 20X12.5 22.5X15 30x20