Essential Essence wheat bags are available in a variety of colours and sizes. The fabric is soft, thick corduroy and the colours may change from time to time depending upon availability. Dark blue and purple are the most popular colours. Each wheat bag contains natural wheat grains and dried lavender flower buds. To use simply place the bag in in your microwave next to a glass of water to prevent over drying and burning of the wheat. Heat on high for 2-3 minutes. Heating times will vary according to microwave strength. Apply the heated bag externally to relieve tired, aching or sore muscles.