Ecological filmbag bag filling material is commonly mortar, the weaving products of finished product and the product words two kinds, the former structure is complex, the sash size between 20 to 30 centimeters commonly. Sash around the thickness is less than 15 cm, cross-section ovalization mortar sclerotium, within the sash can plant trees, flowers and grass is to beautify the slopes, residential area of novel materials.