You can order individual Duff's Door Stop products at Amazon online, Papco Janitoral Supplies,and Dalco Janitorial Supplies 

Heavy Duty Wood Handle with Black Base              
 Shipping and Handling can vary by order size and State in which product will be shipped to                
  $34.99 each                  
Description: wood handles is made from hard wood  material 3/4 Dowel Rod 38 inches total length
Heavy Duty PVC Handle with Black Base
Shipping and Handling can vary by order size and State in Which product will be shipped to               
 $34.99 each
Description :Is made from plastic plate , metal spindle ,and rubber bumper cost 
$24.99 each
Plus Shipping and Handle.
                                                                     
Duff's Door Stopper Staff