1[Dual Measurement Modes] The vernier caliper provides two measurement modes ranging from 0 to 6 inch and 0 to 150mm, with a resolution of 1128in and 0.01mm, ensuring precise measurements. 2[Self Locking Mechanism] With a metal self locking slider, this caliper allows for easy front and back adjustments, accurate fine tuning, accurate reading, smoothly sliding, comfortable hand feel. 3[Ergonomic Design] With a comfortable grip that adheres to the principles of ergonomic design, this caliper measuring tool ensures smoothly pulling and ease of use. 4[Stainless Steel Construction] Made from stainless steel, this caliper offers durability and longevity, which is resistant to corrosion, ensuring reliable performance even in challenging working environments. 5[Wide Application] This vernier caliper is widely used in various industries and fields for measuring size of different objects, suitable for both professional and DIY use, making it a versatile tool for all your measuring needs.