Weatherproof platform requires assembly. The platform can be raised and lowered with included ratchets.Should only be fitted to a TFH Single Swing Frame (not included).Weight Limit - 280 pounds.Maximum Wheelchair dimensions: L: 46" x W: 27" This is a heavy or oversized item and requires additional shipping. THIS ITEM IS CURRENTLY ON BACKORDER UNTIL THE END OF JULY. PLEASE CALL US AT 800-467-6222 TO PLACE YOUR ORDER!!