- Physics Lab Equipment
- Chemistry Lab Equipment
- Biology Lab Equipment
- Anatomical Lab Equipment
- Learning
- Educational Lab Equipment
- Magnets
- Agriculture
- Astronomy
- Earth Science
- Geography Lab Equipment
- Safety Lab Coat
- Laboratory
- Meteorological
- Electricity & Magnetism
- Heat
- School Lab Equipment
- Lab Glassware
- Science Lab Equipment
- Tvet Lab Equipment
- Robotics Kits Supplier and Manufacturer for Schools India
- Math Lab Equipment Manufacturers and Exporters in Ambala
- STEM Kits Manufacturers and Supplier India
- Engineering Lab Equipment
- Hospital Lab Equipment
- Water, Sanitation & Hygiene Supplies
- Cold Chain, Solar & Communication Equipment
- Nutrition
Plastic Ruler 30cm
Plastic Ruler 30cm (Product Code: SLE/S/06) is a shatterproof student ruler used to measure lengths and rule straight lines in centimetres and inches in classrooms and school laboratories. Pupils use it daily for geometry, graph work and simple practical measurements, and it is moulded from recycled high impact polystyrene with bevelled edges and a different scale on each long side. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, for school lab equipment bulk supply orders.
Specifications
| Parameter | Detail |
|---|---|
| Material | Recycled high impact polystyrene, shatterproof |
| Metric edge | Centimetres annotated 0 to 30 cm, with millimetre sub-markings |
| Imperial edge | Inches annotated on the opposite length, with 1/16 inch sub-markings |
| Overall length | Approximately 31 cm |
| Width | 3 cm |
| Thickness | 3 mm |
| Edges | Bevelled |
| Product code | SLE/S/06 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is the 30cm Plastic Ruler Used For?
In lessons the 30 cm ruler is the everyday tool for drawing margins, ruling tables, constructing triangles and reading the length of small objects to the nearest millimetre. In a science practical it can measure the extension of a spring, the length of a pendulum thread or the distance a marble rolls on a bench, while the inch edge lets students compare metric and imperial units on the same object.
The bevelled edges bring the markings down close to the paper, so readings are clearer when the student looks straight down at the mark rather than from an angle. Because the polystyrene is shatterproof, the ruler suits younger pupils who drop equipment, but it should be kept away from hot plates and burner flames. Schools planning a school laboratory setup in India often issue one ruler per student alongside pencils and erasers.
Supplier
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, based in Ambala, Haryana. Besides its science and mathematics teaching equipment, the company supplies classroom stationery such as this Plastic Ruler 30cm, so a school, college or distributor can quote rulers, writing materials and laboratory apparatus in a single enquiry for delivery in India and international markets. Learn more on our company profile.
Related Classroom Student Items
Items that are used together with a student ruler in measurement and geometry work:
- Ruler, Plastic, Blackboard, 100cm — the teacher's board-size ruler for demonstrating the same measurements to the whole class
- Student's Geometry Set/BOX-20 — adds construction instruments for angle and circle work
- Pencil HB Grade Black Lead — for ruling fine, even lines along the bevelled edge
- Eraser Soft for Pencil — for correcting ruled lines and diagrams cleanly
See the full range of pupil and teacher supplies in our Classroom Student category.
Frequently Asked Questions
What scales are marked on the Plastic Ruler 30cm?
The Plastic Ruler 30cm has two scales: centimetres from 0 to 30 cm with millimetre sub-markings along one edge, and inches with 1/16 inch sub-markings along the opposite edge, so pupils can measure in either metric or imperial units.
What material is the Plastic Ruler 30cm made from?
The Plastic Ruler 30cm is made from recycled high impact polystyrene and is described as shatterproof, which suits daily handling by students. Like most plastic rulers it should be kept away from direct heat, such as hot plates or burners, to avoid warping.
What are the overall dimensions of the ruler?
The Plastic Ruler 30cm measures approximately 31 cm long, 3 cm wide and 3 mm thick, so the full 0 to 30 cm scale fits within the body of the ruler, and both long edges are bevelled for clearer reading.
Who supplies the Plastic Ruler 30cm?
The Plastic Ruler 30cm is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab) of Ambala, Haryana, India, which sources classroom stationery for schools and institutions and can quote it together with laboratory and teaching equipment in one order.
Can the Plastic Ruler 30cm be ordered in bulk for schools or export?
Yes, the Plastic Ruler 30cm can be quoted in bulk quantities for schools, education programmes and distributors in India and international markets. Send the quantity and delivery destination through our contact page for a quotation.
Request a Quote
To price the Plastic Ruler 30cm for your school or project, send the quantity and destination through our contact page, or add it to the enquiry cart together with other classroom items you need.
Last updated: 24 September 2026
