Freshwater Polyp Anatomical Model Racks & Stands_Bottle Stands Stout-walled thistle funnel in borosilicate

Stout-walled thistle funnel in borosilicate glass measures 30cm with thick construction for controlled liquid addition in chemistry procedures

Labeled-terminal 50-ohm resistance unit at 7

Clear-coated wooden A-ramp at 17 inches long paired with a double-ended cone roller that appears to travel uphill while its center of mass actually descends along the diverging rails

Aluminum-cast Young's-modulus frame with bubble level

Freshwater Polyp Anatomical Model Racks & Stands_Bottle Stands Stout-walled thistle funnel in borosilicateFreshwater polyp model demonstrates cnidarian anatomy, tentacles, gastrovascular cavity, and simple invertebrate body plan for biology teaching.