Feature: 1. The dial shell is wear‑resistant and transparent, the scale is clear, not easy to fall off and the reading is accurate. 2. Tighten the screw to fix the dial, the measurement is more accurate, and it is convenient and quick to use. 3. Flat head, cone head 2 types, can measure the thickness of different materials separately 4. Using high‑quality materials, strong and durable, has a long service life 5. With strict quality control and quality assurance, high safety factor, can be used with peace of mind Specification: Item Type: Thickness GaugeColour: Black Material: Aluminum alloy Size: Total Length: Approx. 8cm / 3.1in Dial Width: Approx. 4cm / 1.6in Measuring Range: Approx. 0 ~ 10mm / 0 ~ 0.4in Application: Cone Head is used to measure wall/steel thickness, flat head is used to measure paper/jewelry/leather.Optional Style: Flat Head, Cone Head. Package List: 1 x Flat Head Thickness Gauge Note: Manual measurement, please allow 1‑3mm error due to manual measurement. Thanks for your understanding