B188 Classical Bicycle Seatpost Bike Seat Post

Seatpost made of 6061 aluminum alloy,strong and durable. Length:350mm;Diameter:25.4mm 27.2mm 28.6mm 31.6mm;Thickness of the tube:3mm. Seatpost used for for most old style bike,and the bike saddle with clamp. There is a safe line mark on the seat post. Please insert at least above the minimum safety line. Important notice:1. This is for a seat post only, the saddle clamp is NOT included. Please buy a saddle clamp separately or remove one from old saddle.2. Please do measure and confirm the exact post diameter that you need for your bike. Otherwise you may find it too small or too large for your bike frame seat post hole, then you'll have to spend more time to return it. Thank you for your support.3.normally it's not supposed to put over 220 lbs(100kg) on this seatpost.SpecificationsMaterial:6601 Aluminum alloyDiamter:25.4 mm 27.2 mm 28.6 mm 30.8 mm 31.6 mmLength:350 mmColor:BlackWeight:About 170 gPackage Included:1 x Bike SeatpostPay attention please:Please measure the actual require