Adjustable height power rise casting seat pedestal, designed to be used as a seat or leaning post Air-powered adjustable from 22.5" to 29.5" in height, rotates 360 degrees with an integrated seat mount and height adjustment lever Specifically designed to be used with 3/4" mounting hole diameter, King Pin type pedestal floor base Integrated seat mount features 5-1/4" BIA Standard 4 bolt hole pattern, to fit most brands of casting seats ABYC standards require this pedestal to be used in fishing boats not exceeding five miles per hour