Description:Made of 6061 aluminum alloy, strong and durable

Length: 530, 550, 350mm; Diameter:25

4mm 30

8mm 30

4mm 27

2mm 28

6mm 31

6mm 31

8mm 33

9mm; Thickness of the tube: about 3mm

There is a safe line mark on the seat post

Please insert at least above the minimum safety line

Generally applicable to folding bike, BMX, electric car, mountain bike, etc

Specification:Material: Aluminum AlloyColor: BlackSize Chart:Size 1:Dia

x L: 31

8x530mm/1

25x20

86inchSize 2:Dia

x L: 33

9x550mm/1

33x21

65inchSize 3:Dia

x L: 31

6x350mm/1

24x13

77inchSize 4:Dia

x L: 27

2x350mm/1

07x13

77inchSize 5:Dia

x L: 28

6x350mm/1

12x13

77inchSize 6:Dia

x L: 30

4x350mm/1

19x13

77inchSize 7:Dia

x L: 30

8x350mm/1

21x13

77inchSize 8:Dia

x L: 25

4x350mm/1x13

77inchPackage Includes:1 Piece Bicycle SeatpostNote:Color might be slightly different due to the color calibration of each individual monitor

Please allow slightly measuring deviation due to manual measurement