Real crab specimen preserved in a clear acrylic block that can be studied from all angles or viewed under a microscope. Durable enough for classroom use and also makes a unique paperweight for the home or office.
Comes in its own box suitable for gift giving. Acrylic block measures 4 1/4 x 1 3/4".
An unconventional ball-tossing, head-catching challenge for 2 players or teams!
Create all kinds of marble run combinations with this 80-piece Marble Run set!
Build your very own smart robot!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
This classic desk toy will keep you amused!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!