This compass calendar key chain key ring is very creatively designed and fantastically crafted. A delicate perpetual calendar, also a great key chain decoration. Made of solid alloy, can bear longlasting using. This compass 50 years perpetual calendar key chain key ring is great gift for yourself or others. Description: 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 With a shining mirror on the back A small pushing handle on the compass for turning Great for oneself or as a gift to others Material: Zinc alloy Color: Silver as the picture shows. Ring diameter: Approx. 1.26 inch/3.2cm Compass(D x T): Approx. 1.69 x 0.16 inch/4.3 x 0.4cm 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 You can know the week of every day in the range of 2010-2060 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" (Plz note that the red "s""JAN" and "FEB" cant be shown in the real item,just know there are two Jans,two Febs,two s.) The product is new, never used and in good conditon, just go ahead and buy Package includes: 1 x calendar key chain