Single-use Mechanical Radian Table Lens Base Bending Measuring Instrument Glasses Testing Tool

1. The top of the probe head is smooth, not easy to wear the lens2. Precise scale, clearly visible3. Thread design, feel comfortable, non-slip and not easy to fall4. It is suitable for 1.53 lens, cannot measure refractive index5. Material: stainless steel6. Scale: 0-20 degrees7. Weight: about 118 grams8. Dimensions: 50 x 60mm