Rubber, gutta-percha, gum, plastics; non-metallic materials and plastics in extruded form for use in manufacture and agriculture; packing, stopping and insulating materials; synthetic plastics material containing spherical particles; plastics including recycled plastics materials; plastics particulate and granular material for use as infill for agricultural use; recycled plastics for use in artificial turf; recycled plastics for use as infill in artificial playing surfaces including tennis courts, childrens play grounds, sports fields; recycled plastics for use in thermal control of artificial playing surfaces, including tennis courts, childrens play grounds and sports fields