EISCO 4pcs Multi-Shape Equal Mass Set - Aluminum Sphere, Cube, Rectangle, Triangle - Includes Plastic Storage Box

The four different geometric shapes in this set - sphere (32mm dia), square (25.4mm/side), rectangle (50x34x10mm), and triangle (83-67-50mm sides, 10mm thick) - all possess the same 45g mass. Made of aluminum. Comes in a hinged plastic storage box

• 4 GEOMETRIC SHAPES || Set of 4 aluminum shapes include a sphere (32mm dia), square (25.4mm/side), rectangle (50x34x10mm), and triangle (83-67-50mm sides, 10mm thick)
• EQUAL MASS || Each of the four shapes possess the same 45g mass
• ALUMINUM || Shapes are made of aluminum
• GREAT FOR PHYSICAL SCIENCE CLASSROOMS || Great visual and tactile tool for physical science students, demonstrating that the shape of an object can affect its volume but not its mass
• STORAGE BOX || The three shapes come packed in a hinged plastic box measuring 5.25"L x 3.6"W x 1.4"H