●Product size (mm): 6.3 x 3.1 x 0.04 inches (160 x 80 x 1 mm); Product weight: 0.9 oz (26 g); Package size: 7.7 x 4.1 inches (195 x 105 x 3 mm); Package weight: 1.1 oz (30 g) ●Specifications: ●Accuracy: Straight angle: 0.004 inch (0.1 mm) or less per 3.9 inch (100 mm); Length tolerance: ±0.008 inch (±0.2 mm) or less Table scale; Long branches: Outer scale: 5.9 inch (15 cm) inner scale: 3.9 inch (10 cm) ●Back scale ● Long branch: Outside scale 5 inch inner scale 3 inch ● Short branch: 2.5 inch outer scale 2 inch inner scale Shape: Same thickness Material: Stainless steel ●Caution: Please do not use in places that may come into contact with electricity