Most foam connecting mats fall in the ~0.5 to 1.5 inch range. Common examples shown in product listings include 0.5", 0.75" and 0.79", with some sets listed at about 1.5" thickness.
Care is usually simple spot cleaning or wiping. Many foam connecting mats have waterproof or wipe-down surfaces; product descriptions commonly recommend wiping with a cloth after use to remove dirt, sweat, or spills.
Tiles typically use jigsaw-style interlocking edges that lock together. Many kits include detachable border pieces so any tile can serve as a corner, border, or center piece, and some sets allow trimming tiles to fit against walls for a wall-to-wall or custom layout.
They are generally lightweight and designed for easy assembly and disassembly. Most descriptions note you can break sets down for compact storage or tuck pieces under furniture, making them convenient for temporary floors and transport.
Product details most often list EVA (Ethylene Vinyl Acetate) or polyethylene foam cores. Some listings also describe rubber or vinyl outer layers, PEVA backings, or adhesive-bonded multi-layer constructions that pair a foam core with a rubber/vinyl surface.
Individual tiles commonly range from about 12.5 to 25 inches across. Kit coverage examples in listings run from roughly 11 square feet up to about 96 square feet, depending on the number of tiles included.