20m Fiberglass Tape Measure with PVC Cover and Winding Handle Type_Tall Form Jumbo three-dimensional frog dissection model

Jumbo three-dimensional frog dissection model with keycard demonstrates amphibian anatomy and organ systems for detailed vertebrate teaching

Seventeen-and-a-half-inch wooden simple-lever apparatus with an adjustable fulcrum on an 8

this handle-fitted bicycle wheel lets students feel torque resistance in a spinning mass

Sodium chloride lattice kit with 27 color-coded gray and green atoms plus 54 connectors for building the full cubic NaCl crystal structure in three dimensions

Molded black plastic replacement knob sized for the goggle sanitizer cabinet timer switch

20m Fiberglass Tape Measure with PVC Cover and Winding Handle Type_Tall Form Jumbo three-dimensional frog dissection modelFor field surveys, outdoor physics activities, and long distance laboratory exercises, this twenty meter fiberglass tape measure carries a non conductive waterproof PVC coating.