Product name: ceramics road stud Material : porcelain Color: white & yellow Specification:4 inch Dimension: D100mmxH20mm Weight: 270Gí+10 Weather resistance: >16280h Impact resistance: í¦25 metric ton 33X25X23CM. Description: 1.Ceramics road stud is composed of high-temperature proessing porcelain base and opaque,glazed surface. 2.Good wearing resistance and impact resistance. 3.Ceramics road stud glazed finish protects against weathering especially during rain, excellent day time visibility, avaiable in high visibly white or yellow. Packing: 60pcs/ctn,15/17KGS.