Mounted on a plastic base, with a ring for easy hanging. Includes an instruction sheet. Overall diameter is 7.5".

This simple tool measures wind speed and direction. The wind speed range is 0 to 17 meters per second (+/-10%). The direction indicator is divided into 16 compass points. A built-in compass is provided.

Durable, lightweight oversized plastic instruments, designed for whiteboards and chalkboards. Triangles, protractor, and ruler are made of white polystyrene and feature handles for ease of use. Compass is made of clear acrylic.

Durable, lightweight oversized plastic instruments, designed for whiteboards and chalkboards. Triangles, protractor, and ruler are made of white polystyrene and feature handles for ease of use. Compass is made of clear acrylic.

Durable, lightweight oversized plastic instruments, designed for whiteboards and chalkboards. Triangles, protractor, and ruler are made of white polystyrene and feature handles for ease of use. Compass is made of clear acrylic.

Durable, lightweight oversized plastic instruments, designed for whiteboards and chalkboards. Triangles, protractor, and ruler are made of white polystyrene and feature handles for ease of use. Compass is made of clear acrylic.

Durable, lightweight oversized plastic instruments, designed for whiteboards and chalkboards. Triangles, protractor, and ruler are made of white polystyrene and feature handles for ease of use. Compass is made of clear acrylic.

Durable, lightweight oversized plastic instruments, designed for whiteboards and chalkboards. Triangles, protractor, and ruler are made of white polystyrene and feature handles for ease of use. Compass is made of clear acrylic.

Introductory level metric micrometer graduated to read up to 25mm in 0.01mm divisions. Comes in a plastic storage case.

This micrometer is made of hardened steel for precision and durability. Its range is 0 - 25mm and it has a precision rotary scale with a resolution of 0.01mm, a ratchet thimble and a locking lever. Instructions are included.

Includes a variety of tools and objects for teaching basics of measurement. Kit is shipped in a reusable storage box. Includes activity guide with 15 activities. Includes an activity guide.

This measuring set contains four instruments. Includes instructions. Contents: Micometer Caliper, 0-25mm x 0.01 mm 1, Knife Edge Square, 90°, 100mm x 70mm 1, Vernier Caliper, 150mm x 0.02mm 1, Ruler, Steel 15cm x 0.5mm 1.

The clear plastic 12" / 30.5cm ruler is scaled in 1/16" increments on one side and 1mm increments on the other side.

The clear plastic 6" / 15cm ruler is scaled in 1mm increments on one side.

This 12" / 30.5cm wooden ruler has a double bevel and a pencil groove. It is scaled in 1/16" increments on one bevel and 1 mm increments on the opposite bevel. There is a metal edge on one side.