The All-Weather features a double contoured seat pan that eliminates pressure points. Stainless steel hinge pins secure the fold down back and the included proprietary quick disconnect mount provides for even more functionality. The QD mount allows the seat to swivel on a low profile corrosion-proof disk. The seat can also be removed for storage or to be used in another location on the boat. The replacement cushions feature welded seams that inhibit water intrusion, marine grade UV-stable vinyl, and high density foam inserts. Size: 16- 1/2H x 18- 1/4W x 17D There are multiple mix and match options available, check the table closely to see what is included with each item MP Master List