This plastic vernier caliper measures internal and external dimensions from 0 to 150 mm with 1 mm accuracy. It is a lightweight and affordable tool for students, jewelers, and hobbyists who need quick and reliable measurements without the weight of metal calipers.

The double rule scale is marked in centimeters, making it easy to read and use for basic measuring tasks. The vernier design allows you to measure depth, height, and diameter of small objects like jewelry beads, rings, and electronic components.

Made from durable plastic, this caliper is safe for delicate surfaces and will not scratch or damage soft materials. It is available in four colors—black, white, red, and blue—so you can choose one that stands out in your toolbox or classroom.

Whether you are a student learning measurement basics or a jeweler checking stone sizes, this plastic caliper offers a practical solution for everyday measuring needs.

Key Features and Benefits

- Plastic construction that is lightweight and safe for delicate items like jewelry and antiques

• Vernier scale for both inside and outside measurements, giving you versatility for different objects

• 0 to 150 mm range that covers common jewelry and school project sizes

• Clear centimeter markings that are easy to read, even in dim light

• Compact total length of 210 mm that fits easily in a pencil case or tool pouch

Who Is This For

- Students learning measurement and basic math in school science or woodworking classes

• Jewelry makers and repair technicians who need to measure beads, stones, and ring sizes

• Hobbyists working with small parts like model kits, electronics, or craft supplies

• Teachers looking for affordable classroom tools for group measurement activities

Usage Scenario

Emma is a jewelry designer who needs to measure the diameter of small gemstones before setting them into rings. She uses this plastic vernier caliper to check each stone quickly without worrying about scratching the surface. The lightweight design lets her work for hours without hand fatigue, and the clear scale helps her get consistent measurements every time.

Micro Comparison

Unlike metal calipers that can be heavy and expensive, this plastic version is budget-friendly and safe for delicate materials. It does not offer the same precision as a digital caliper, but for basic classroom and jewelry tasks, the 1 mm accuracy is sufficient. If you need faster readings, consider a digital model, but for simplicity and durability, this plastic caliper is a smart choice.

Specifications

Material: Plastic

Accuracy: 1 mm

Measurement Range: 0 - 150 mm / 0 - 5.9 in

Total Length: 210 mm / 8.3 in

Color Options: Black, White, Red, Blue

Scale: Centimeter

Application: Depth, height, and diameter measurement for jewelry, school, and antiques

Please allow 1-3 cm / 0.4-1.2 in difference due to manual measurement.

Package Includes

- 1 x Vernier Caliper

Why You Will Love It

This caliper gives you a simple and reliable way to measure small objects without spending a lot of money. It is light enough to carry anywhere and gentle enough for your most delicate work. Whether you are in a classroom or a workshop, it helps you get the job done with confidence.

Questions and Answers

Question: Can this caliper measure the inside of a ring?

Answer: Yes, the vernier design has jaws for both inside and outside measurements, so you can measure the inner diameter of a ring.

Question: Is this caliper accurate enough for school science projects?

Answer: Yes, it has 1 mm accuracy, which is suitable for most school measurement experiments and basic projects.

Question: Will the plastic scratch metal or glass surfaces?

Answer: No, plastic is