US$ 17.95
Polished 63 by 63mm equilateral acrylic prism with 60-degree angles
this metal wave helix demonstrates pulse propagation
STOPPER & STOPCOCK || Fitted with an interchangeable 24/29 plastic stopper and glass key stopcock
Made from quality borosilicate glass
562-Piece Extra-Large Molecular Model Set, 292 Atoms + 270 Bonds Base Shape_Rectangular Polished 63 by 63mm equilateralLargest 562 piece molecular model set with 292 atoms and 270 bonds plus a bond removal tool, covering everything from water and CO2 through alkenes, amino acids, and fatty acids.
US$ 17.95
US$ 1879.99
US$ 17.95