specifications︰ Features:
1. Compact and pretty appearance design;
2. No vision difference on the display screen, no deformation and accurate lens layout obtained;
3. Compensating the accuracy of the lens and suction cup position;
4. Bifocal lens can be positioned quickly and accurately, the small lens can also be put in clear projectile;
Specifications:
1. Max. Diameter of Pattern: W180×D265×H305mm;
2. Weight: 5.0Kgs;
3. Power Requirements: AC.110V/60Hz,AC.220V/50Hz;

Advantages︰ TW-207： With LED, with printer
TW-207A：With LED,without printer