5-Metal Equal Mass Cylinders Set, Lead-Free (Zinc, Copper, Aluminum, Tin, Brass) Subcategory_Racks and Stands supporting both qualitative and quantitative

supporting both qualitative and quantitative force-vs-distance student investigations

exposing pulmonary and cardiac anatomy separately or together across a 16

Large-scale typical flower model with removable floral parts and a bisected ovary showing internal ovule arrangement for detailed botany instruction

and hinge-distance scales

3" (85mm) and an outer diameter of 3

5-Metal Equal Mass Cylinders Set, Lead-Free (Zinc, Copper, Aluminum, Tin, Brass) Subcategory_Racks and Stands supporting both qualitative and quantitativeLead free five cylinder equal mass set at 30g each in zinc, copper, aluminum, tin, and brass, offered as a safer substitute for the lead containing PH0112FCB set.