US$ 29.99
a flexible mounting option for pulley and force demonstrations
Precision-machined stainless steel slotted weight adds small mass increments during spring-scale and analytical balance calibration work
and mitochondria visualization
Six-material drilled ball set with 25mm balls of wood
Reading Glass Magnifier, 3X with 2" Diameter Capacity_10000mL a flexible mounting option forThree power hand magnifier with 2 inch lens supports reading fine print and close inspection of rock specimens, plant structures, and small apparatus detail.
US$ 29.99
US$ 29.99
US$ 31.99
US$ 26.99