Rediff: Buy 1 Get 1 Free Calendar Date Month Year Day Keychain Of 50 Yrs at 79 Rs http://shopping.rediff.com/product/buy-one-get-one-free/Buy-1-Get-1-Free-Calendar-Date-Month-Year-Day-Time-Keychain-Of-50-Years/11743528/storeid-6844 Apply SHOP100 code to get 100 Rs discount Shipping charges 50 Rs. Details: A compass perpetual calendar key chain key ring A great perpetual calendar, also a great key chain ring decoration Characters on the compass are color filling in the groove, not easy to fade or to abrade A small pushing handle on the compass for turning Great for oneself or as a gift to others Material: Zinc alloy Color: As shown in this picture Ring diameter: Approx. 1.26 inch/3.2cm Compass(D x T): Approx. 1.69 x 0.16 inch/4.3 x 0.4cm Extremely Good Quality br /> How to Use : Turn the upper disc, aligning the year and month you are to seek, then the diagonal direction will show you the week information of each day in the month Black "S" means Saturday and red "S" means Sunday When you seek for January or February in a leap year, you should aligning with the red "JAN" and "FEB"