The Hi-Lo Seating System is a two position pedestal system that allows a boat seat to be used in a high position for fishing and a low position while the boat is underway. Simply remove the pedestal and place the seat mount directly into the base socket for low seating position, insert pedestal for high seating position. The Hi-Lo System comprises of three pieces• Pedestal seat mount• Pedestal post• Pedestal deck base Pedestal Seat Mounts• 360º rotation• 3º reclined seating position• Corrosion Resistant E-Cote plated• Optional spring suspension ride BLA CODE SPRING PIN DIA. MM 183108 No 19 183110 Yes 19 Hi-Lo Pedestal PostsNylon top bush for smooth, silent, lube free swivel operation, anodised aluminium tube, stainless steel pin. Available in fixed height or adjustable height. BLA CODE HEIGHT MM TUBE DIA. MM PIN DIA. MM 183115 330 38 19 183117 380 38 19 183120 490-640 38 19 Hi-Lo Pedestal Deck Bases• Stainless steel or anodised alloy construction• Nylon bush for smooth, silent, lube free swivel operation BLA CODE MATERIAL SIZE MM INTRUSION MM MOUNT SCREWS MM 183123 Stainless steel 177 x 177 62 6 c/s 183130 Anodised alloy 177 x 177 62 6 c/s