Your saddle, exactly where you left it
A machined solid-brass collar that sits on your seatpost and remembers your saddle height. Set the height once and close the collar on top of the seat clamp.
When the post comes out for a bike box, a service or a shared ride, slide it back in until the collar stops it. The saddle is back at exactly the same height.
The collar opens on a hinge, so it fits without removing the post, and one small bolt closes it. It comes in four sizes for 27.2, 30.9, 31.6 and 34.9 mm posts.
Add-ons · optional
The collar's rear dock takes small add-ons that slide on and lock with one tiny set screw.
Two halves hinge on a 4 mm pin hidden inside the rear dock. The split in the pointed front is the alignment line. With an add-on docked, the hinge is locked shut.