Do the 1/2' Rubber Gym Tiles interlock? One of the images shows that they do, but another does not. Do you all sell corner or border tiles in this style?

Our 1/2" Rubber Gym Tiles are an interlocking tile. These tiles are made in three different forms, corner, border, and center tiles. The center tiles have interlocks on all sides. The border tiles have interlocks on three sides, and the corner tiles have interlocks on two sides. You can purchase all three types individually on the product page.