Bull Frog Dissection Anatomical Model with Open Back on Stand, 22 x 16 inch Physics_Light & Optics bottle in borosilicate glass holds

bottle in borosilicate glass holds 125mL with glass stopper for biological oxygen demand testing and water quality analysis

Ninety-five-piece molecular model set with 53 atoms and 42 links spanning organic and inorganic chemistry

Two transparent 153 x 76 x 6mm plates

each numbered feature keyed to an identification card

preventing blowouts while anchoring the unit against accidental classroom contact

Bull Frog Dissection Anatomical Model with Open Back on Stand, 22 x 16 inch Physics_Light & Optics bottle in borosilicate glass holdsBull frog dissection model with open back reveals vertebral column, spinal cord, and amphibian skeletal structure for comparative vertebrate teaching.