The material says: dry flowers. Because each season's flowers are slightly different, 10% of the flowers and flowers on each set of custom-made flowers will change according to the season. Dimensions: The overall diameter of the round surface is 30 cm* and the height is about 40 cm. Storage: Avoid direct sunlight or place in a humid environment. Air-conditioning or dehumidifiers are more fake. It can be stored for a long time. Do not water! If there is dust, use a hair dryer to gently blow it, or use a brush to gently brush it out. If it hits the water, blow it under the electric fan and put it in a ventilated place. Generally, it can be best preserved during the period of six months to two years. Any other questions: Welcome to ask and answer.