Upper Triple Root Molar Model with Caries, 15X Enlarged, 2-Part Pack Size_100 Engineered with a higher spring

Engineered with a higher spring constant than a classic coiled novelty spring

Fullerene C60 kit with 60 atoms and 90 bonds for building the spherical cage structure characteristic of fullerene carbon allotropes

Handmade wooden spice rack holds twelve 6-inch borosilicate glass test tubes with caps and includes a filling funnel for kitchen-to-lab cross-over gifting

Triple tandem plastic pulley with 25/38/50mm ball-bearing wheels on an open-sided 17

polished with ground edges for image-formation experiments in introductory optics

Upper Triple Root Molar Model with Caries, 15X Enlarged, 2-Part Pack Size_100 Engineered with a higher springFifteen times enlarged molar shows progressive caries decay through enamel and dentin into the pulp chamber, supporting dental hygiene and pathology teaching.