Metal Cubes Defibrillator The apparatus is for measuring

The apparatus is for measuring and analyzing gas given off by plants

The Scalpel handles come in different sizes and shapes

and mounted onto a solid stand to allow for decades of student use

Metal Cylinder Set

colorful handles made of plastic

Metal Cubes Defibrillator The apparatus is for measuringMetal Cubes A. Cubes Set of 12 Kinds Materials, (size 2x2x2cm) including Glass, Soft Wood, Iron, Lead, Aluminum, Zinc, Copper, Brass, Plastic, Resin, Stonum, C. Cubes Set of 6 Kinds Materials, Size (1x2x3cm 6 pcs), total 18 pcs. including Iron, Lead, Aluminum, Zinc, Copper, Brass. D. Cubes Set of 4 kinds of Materials with Hook, Size (3x3x3cm) including Lead, Aluminum, Brass, Iron. E. Cubes Set of 4 Kinds Materials, size (1x1x5cm) including Lead,