Deluxe Box Magnifier, Ideal for Observing Large Insects, Base size: 3 1/2in L x 3 1/2in W x 2 3/4in H, Lens diameter: 2 1/4in, View specimens up close, then set them free. The base of the 3X magnifier covers live specimens for hands-free observation, Clear plastic
Deluxe Hydraulics Class Pack, Perfect for use in studies of levers and simple machines,design and technology units,engineering and invention units,fluid studies,science fair activities,engineering Design Process units.