Hanover's Detectable Warning® Pavers aid partially sighted and blind pedestrians. Manufactured to meet requirements set forth in the ADA Code, the top surface has non-slip properties and raised truncated domes. Domes are readily detectable under foot or by cane. Typical installations include railway platforms, handicap ramps or curb and grade changes. Detectable Warning® Pavers are manufactured in several sizes and colors to suit design requirements by contrasting the surrounding pavement and complying with the American Disabilities Act (ADA).