The Master Lock Magnifying Combination Lock eliminates the hassle of wearing glasses at the gym or pool and the frustration on entering your combination multiple times due to misdialing. The unique lens design offers high contrast numbers, 360 degree of magnification and obscured visibility to onlookers. With the traditional rotary dial functionality, an easy to grip soft-touch dial ring and tactile dial feedback at each number, precise dialing is assured. While it is ideal for those with visual or manual dexterity limitations due to farsightedness, computer-related eye strain, aging, arthritis or other physical restrictions, everyone benefits from the convenience of this upgraded security solution. Now, you can confidently dial correctly the first time, saving time and aggravation. Easy to Read. Easy to Use.