"SI Manufacturing"

Four gears of different sizes, perfect for any investigation or maker project.

One edge is graduated 0 to 30 cm with mm divisions.

Thick Plastic Ideal for Classroom Use.

Four meter sticks in one and made of flexible plastic.

Flexible plastic meter stick marked in cm with 1 mm divisions on one side and with alternate-colored dm bars on the other, to show the relationships between units.

Triangle meter stick is measured up to 1 m.

Calibrated in both inches and centimeters, these fiberglass tapes will find use in indoor and outdoor measurements activities.

Observe the sky and identify various cloud types with this simple device.

Hang this caddy on a wall or door to easily keep track of your classroom calculators.

Featuring an ultra slim design and dimmable LED technology.

Three 50 cm in diameter cirlces in three colors (red, yellow and blue) are designed for a wide range of counting and sorting activities.

It is versatile and easy to use, this precision tool allows you to draw circles, straight lines, and complex geometric shapes with accuracy and artistry.

Durable plastic with metal fahnstock clips for wire attachments.

Numbered inserts and a lockable lid make it easy to keep track of your classroom calculators.

Plastic Wheels