Master Mark Plastics Armadillo Interlocking Plastic Floor Deck Tiles - Cobalt Blue - Durable Outdoor & Indoor Flooring for Patio, Garage, Gym, and Play Areas

These plastic tiles attach to each other securely. Using on top of concrete floor in storage unit. Would be even better if a little thicker/taller off the floor but meets expectations based on the product description.I'm using these tiles under and around my cat's litter box. Any spilled or tracked litter falls in the holes so it doesn't get tracked around the house. A quick vacuum takes care of the trapped litter.Used for a playhouse floor, over plywood. Worked wel. Love the blue color.Easy to use and strongGreat product and great serviceI like it very much, but the color is not like the picture to show that way I would not give seller five star.