Made by Kalloy. Top suaged for standard saddle clamp (22.2).
Kalloy Quick Release Seat Post Clamp | Great Condition
AARON Tube seat post with 25.4 mm diameter, aluminium seat tube with 350 mm length, seat post for city bike, trekking bike and touring bike with scale in black
LALAGO Bicycle Seat Post 27.2 mm Aluminium Seat Tube Seat Post 350 mm for Mountain Bikes Road Bike Track
VGEBY 31.8mm Aluminium Seat Clamp, Quick Release Bike Seat Post Clamp, Fits for Most Aluminum Frame Bikes, Black
Liebdorf Bicycle Seat Clamp with Quick Release - 31.8 and 34.9 Aluminium Seat Post Clamp - Black/Silver (Silver, 34.9 mm)
AARON Post Seat Post with 30.9 mm Diameter, Aluminium Seat Tube with 350 mm Length, Support for City Bike, Trekking Bike, Touring Bike and Mountain Bike in Black
