SKAT-TRAK 20 HOOKERS, we can put them in-line or staggerd, paddle size is 14 wide by 1-7/8 tall. Tire sizes listed are, aprox hight less paddle X width of paddle area X wheel dia. Please add aprox 4in. to the the height with paddles! (example 32 x 16 x 15 aprox 35-36in. tall depending on rim width and air pressure.)Add cord to the paddle for extra strength! Blown, nitrous, heavy?? Add KEVLAR! 1000-1500HP add 1 layer, 1500-2500HP add 2 layer, Screw blowers & heavy cars over 2500HP 3 ply! We will call you for any additional info if needed, Questions? Ask us in the Special instructions/comments box when placing your order! Shipping weight is dementional weight not tire weight! THANK YOU!!!