This is a Wheel of the Year made out of Birch wood. These are made to order, you can choose between approximately 4, 6, 8, 10, 12, 14, 16 and 18 in diameter and 1/4" thick. This is just for the grid, stones much be purchased separately.
The Wheel of the Year is an annual cycle of seasonal festivals, observed by many modern Pagans, consisting of the year's chief solar events (solstices and equinoxes) and the midpoints between them.
Crystal grid and healing sets are groups of stones that go together for a purpose. Sets of crystals and stones are used for ritual magickal or spiritual crystal healing purposes or with Reiki-Seichim energy work for healing. Some are generalized and others have specific purposes.