Micrometer Tolsen 35055 is a ring clamp. With a simple operation, the ruler helps you accurately measure objects as small as 0.01mm in diameter. Ruler made of high grade steel, rust-proof and durable. The compact design, handy. There are two metric systems in meters and inches. Have a stop key. SPECIFICATIONS Item Name Blade Micrometer Model 35055 Brand Tolsen Colour Silver Size 0-25mm Accuracy 0.1mm Brand Origin (not manufacture) China Packing Quantity 1 Unit Piece