Here are some interesting details about the composition of Anglican prayer beads:
[T]he number of beads in the Anglican rosary has been set at 33, the number of years in Christ's life. A set of Anglican beads is comprised of four sets of 7 beads called "weeks". The number 7 represents wholeness and completion, and reminds us of the 7 days of creation, the 7 days of the temporal week, the 7 seasons of the church year, and the 7 sacraments. Four "cruciform" beads separate the "weeks". They represent the 4 points of the cross and its centrality in our lives and faith, the 4 seasons of the temporal year, and the 4 points on a compass.
It's often helpful to have something to do with one's hands while praying. There are many forms of rosaries. The Anglican form is only one. And, of course, you can always just take a piece of string and tie knots in it. It's easy. It works!