The first age ring is an obtainable item from Treasure Hunter, or can be purchased from the shady ghost for 1,000 ecto-tokens. When worn, it provides an experience boost of 1% while training Prayer.
This item was originally available on the Squeal of Fortune from 15 March 2013 to the 18th of March 2013, but was released the 12th of March. It can be still be won as a rarely occurring prize.
This does not boost experience gained at the Ectofuntus.