Specification

Seatpost Mounted Adjustable Bike Rear Rack Carrier
Material:Aluminum Alloy
Color:Black
Rack length:13.8inch~19.7inch (adjustable via adjusting screws under the rack)
Width:4.7inch
Weight:about 500g
Fit Seat Post Diameter:1.01-1.3 inch
Position:Bike Rear
Mount:Seat Post Mounted via screws
Capacity:10kg (22lbs)
For Bike Type:Fits most mountain and hybrid/road bike frames
Package Content:
1 x Bike Carrier Rear Rack

Features:
1.Screws mounted at seatpost, fits seatpost diameter under 33.3mm only
2.It's also a fender for your bike