The Cry Baby Racing tire caddy system is the first of its kind and will bring your bench and tire organization to the next level. Each "stack" holds a full set of 1/10 TC tires. Each tire is clearly labeled for easy reference. Stacks snap together using the CBR tab system creating a sturdy tower as high as needed without fear of toppling over. Stacks can be purchased as singles (1 level), doubles (2 levels), triples (3 levels), or even quadruples (4 levels) !!! Prices are reduced as more stacks are purchased.