Cast-In-Place Replaceable Truncated Domes Tiles - 1' x 1' Size - Installed in Wet Concrete Made in America - ADA compliant - Shipped Free by Ground Services. Expedited air shipping is not available. These replaceable tactile warning tiles ship in 1-4 business days from the New York warehouse. The end result of more than 20 years of meticulous design and manufacturing by industry leading professionals, these truncated dome replaceable tiles are the best solution for installation on freshly poured concrete. There will be no need, many years down the road, to demolish and re-pour concrete, because the innovative anchoring hardware allows for a broken or worn tile to be removed, and a new tile put in it's place. These cast in place truncated domes with their two-part replacement system are the choice for new builds and new construction projects. If your project calls for retro-fit truncated domes, rather than these cast in place tiles, we recommend either self-adhesive truncated domes, or traditional service mounted tiles, or flexible urethane pads which can all be applied to pre-existing cement. (Note: Only our self-adhesive style truncated dome mats can be applied to asphalt surfaces, as well as concrete surfaces.) ADA Compliant Concrete Surface Mounted Truncated Domes 2.35" center-to-center, in-line dome spacing meets ADA Federal and State requirements Truncated dome size and spacing compliant with ADA Federal and State requirements, 0.9" base and 0.45" top diameter Perimeter of tile is designed to meet ADA requirements for surface height transition. Fully complies with all ADA and OHSA requirements for surface height transitions to eliminate trip hazards Consistent dome spacing when tiles are adjoined (side-by-side or end-to-end) Wide in-line dome configuration facilitates a smooth rolling transition for strollers, wheelchairs and walkers High density, diamond grip™ pyramid micro texture designed for exceptional slip resistance in wet and dry conditions.