$10.21

Mr. Pen- Compass for Geometry, with Pencil, Drawing Drawing...

$25

Chemistry Set Xp-3000 Parts & Manuals ( Incomplete Set )

$12

MEL Chemistry Kit Chemistry of Monsters Ages 10+ New Sealed

$19.95

Vintage 1984 Prentice Hall Molecular Model Set for Organic Chemistry COMPLETE

$269.95

Kaplan Early Learning Motors and Magnets Loose Parts STEM Kit - 178 Pieces

$16.99

New DIATOMS DE DIATOMACEOUS EARTH MICROSCOPE KIT ( Rainy Day Fun )

$5.3

Westcott Nickel-Plated Ball Bearing Compass with Bearing, Multicolor

$21.78

ALLY Tools 8 Inch Precision Locking Wing Divider/Woodworking 8 to 10.9 Inches

$14.95

MEL Chemistry Kit Chemistry Of Monsters Sugar Snake Sealed

$13.74

Vintage Porter Science Microcraft Microscope Lab No. 2105

$14.99

Bishops Science Co. Microscope - Model HI with Coverslips and Slides

$18.99

1000X Portable Microscope Video Camera 2 in 1 for Kids, 2"HD IPS Screen Pocket,a