Pull Tite II® Seal, 1 Pack Measuring Aids WITH HEADS * Without Clock MSHQ WA11730 WITH HEADS * Without Clock or Temp * Designed to put everything needed for fast accurate diagnoses at arms length * Features handle based rheostats for quick light intensity adjustments * Modular coiled cords guaranteed for ten years * High impact ABS housing * Improved cradle design featuring OptiSenseTM an optical sensor that automatically turns handles on when they are removed from the cradles * New Halogen HPX Lamp the two heads that come with this unit are WA11710 Ophthalmoscope WA25020 Otoscope inferior and posterior instabilities Excellent seal for code carts and emergency kits that need security with quick entry Average breaking strength 11 14 lbs