Wondermat® original Designer Series Mats We introduced this line of foam mats back in 1992! It's stood the test of time, and that's because the material quality was first-rate from day one, and the interlock design allowed all three tiles sizes to connect together with each other, and two border options let the system get within about 4 inches of any dimension right out of the box. We called it the "Standard Series" because it set The Standard; there was no more versatile design out there. There still isn't a better design for general purpose mats on the market today. 1-Foot Printed Foam Tiles 5/8th Inch Printed Foam Mats 18-Inch Printed Mats 5/8th Inch Printed Foam Mats 2-Foot Printed Foam Tiles 5/8th Inch Printed Foam Mats 3-Foot Printed Foam Tiles 5/8th Inch Printed Foam Mats Sorry, but there are no sub-categories defined for this product category at the moment. This are a planned product category and negotiations with Vendors are ongoing, so rest assured we're working on it.