Rotary Four-Post Efficiency Package includes two (2) Model RJ6000 Rolling Bridges and an Internal Airline Kit. This kit can be used with the SMO123 or SM123 Four-Post Lifts. This package must be ordered with a lift. 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.