RevTime Easy-DIY Ultra Thick Interlocking Outdoor Rubber Tiles 20" x 20" x 1 3/4”, 45mm Thick for Playground, Outdoor Gym Floor, Sports Deck, Backyard Play Area (Pack of 2) Red : Amazon.co.uk:
Auto Pro Black Interlocking floor tile 2.16m², Pack of 6 | DIY at B&Q
Castleflex - Castle Composites
Anti-Slip Floor Interlocking Mat Black 600 x 600mm 6 Pack - Screwfix