Amazon.com : Seat Post 600mm Bike Seatpost Aluminum Alloy Bicycle Seat Post with Micro Saddle Clamp for Mountain Road Bike,Black,33.9*600mm : Sports & Outdoors
Bike Seatpost x 600mm Adjustable Long Seat Post Folding Bike Seatpost for Bike Folding Bike Cycling Accssories - - Walmart.com
Aluminum Cycling Seatpost Bicycle For Folding Bike Seat Post 33.9*600mm Litepro | eBay
Litepro Folding Bike CNC SeatPost 31.8*580mm Aluminum Alloy – Litepro official store