Rotary's 2ft. Runway Extension Kit for SM18 and SM180 Series Lifts includes two (2) extensions. Please specify color. Local sales tax rates will apply on all Rotary Lift purchases that are drop-shipped from the manufacturer. When purchased with a lift, additional discounts may be available. Please call for better pricing. Also, freight charges for this product are NOT included, and we will contact you with the amount after order is placed.