Tile thicknesses in the listings are around 0.375–0.4 inches. Some interlocking letter tiles are specified as 0.375 inches, while several high-density EVA play mats are listed at about 0.4 inches.
Play mats are described as waterproof and easy to clean—wipe with a damp cloth or use warm, soapy water for tougher spots. Foam-backed 3D puzzles are typically listed as wipe-clean with a dry or damp cloth and include simple care notes in their product information.
Listings show interlocking tiles used to build three-dimensional shapes (boxes, cubes), stacked or shaped for creative play, and larger mats repurposed as a yoga or exercise mat.
Boxes commonly include the specified number of foam-backed puzzle pieces and an instruction booklet; some listings also mention cardboard accessories or additional display pieces.
Play mats are commonly made from EVA (ethylene vinyl acetate) foam, while foam-backed 3D puzzles and similar kits are described more generally as made of foam.
