Large Earthworm Dissection Anatomical Model, 19 x 7 inch Light & Optics_Color and accessories for combined friction

and accessories for combined friction and inclined-plane work

Borosilicate beaker shot glasses hold 1

and chewing mechanisms in health coursework

Polypropylene round test tube rack holding 12 tubes — four at 25 mm and eight at 19 mm — with 360-degree access for benchtop chemistry demonstrations and student experiments

Step-down transformer matched to a 35-watt sodium lamp on a 220V AC mains supply

Large Earthworm Dissection Anatomical Model, 19 x 7 inch Light & Optics_Color and accessories for combined frictionBuilt for invertebrate study, this large earthworm dissection model reveals segmentation, nephridia, and digestive tract for annelid anatomy teaching.