The cast aluminum single-sided road stud shell is made of ABS engineering plastic or cast aluminum, and the reflective lens is made of imported PMMA material from Japan. The product has strong compressive strength, greater than 160KN. The reflective effect is good, the adhesion is strong, and the reflective layer does not wear off. It is used in road and bridge construction, municipal construction companies, toll booths, traffic warning, fire rescue, road operations, and parking lots. Dimensions: 100x100x70mm