Feature Highlights: 1. Durable Construction – Made of sturdy plastic and metal, the metal hook is built to last, resists breaking, and can be used repeatedly for reliable measurements. 2. Portable & Convenient – Compact and easy to carry, this manual spring scale features a clear engraved scale and a bottom hook, making it ideal for travel or everyday use. 3. Versatile Tool – Perfect as a classroom teaching aid to engage students in hands‑on learning, or as a handy home tool for weighing small objects. 4. Simple Operation – The balance offers two calibration modes (Grams and Newtons). Just hang the item on the hook, hold the scale vertically, and read the value where the spring stops—quick and straightforward. 5. Clear & Observational Design – Transparent cylinder lets you watch the spring expand and contract, while the bold scale markings ensure accurate, easy‑to‑read measurements. 6. Practical Storage & Multi‑Pack – Each scale has a top ring for hanging when not in use, so it’s always within reach. The 2‑pack set allows you to measure with a friend or keep one as a spare—fun and functional. Product Details: This spring balance is a practical, user‑friendly measuring tool. Its durable plastic‑and‑metal build stands up to repeated use, and the transparent body lets you observe the spring’s movement for a clearer understanding of measurement principles. With dual Gram/Newton calibration, a bottom S‑hook for weighing items, and a hanging ring for convenient storage, it’s designed for ease and longevity. Ideal for classroom demonstrations, home projects, or on‑the‑go weighing—everything stays neat, accurate, and simple. Specifications: - Color: Yellow - Shape: Cylinder - Material: Plastic + Metal - Size: 6.69 × 0.78 inch (17 × 2 cm) - Package Includes: 2 pcs spring balance scales (5N/500g each) Note: Slight color variations may occur due to lighting during photography. Manual measurement may result in minimal size tolerance.