1. Material: metal, PVC 2. Applicable fiber: 1/2 core fiber 3. Scope of application: indoor optical cable (3x2mm) 4. Adapt to fiber cladding diameter: 125 microns 5. Adapt to fiber coating diameter: 0.25, 0.9 6. Clear scale, fast measurement, increase work efficiency 7. Reinforced shrapnel, highly durable, not easy to rust, easy and simple to operate with one hand 8. PVC non-slip handle, ergonomic design, comfortable and labor-saving grip, easier to operate 9. Dimensions: 11.5 x 5.8 x 2 cm