Only one available- just something I thought of and made a prototype of, to see if there is any interest in making more.
Allows you to tilt your seat post clamp either forwards or backwards- almost all seat clamps can rotate as such- and lets you run it more or less horizontally. The small set screw lets you slide+anchor it however far forward or back you want.
>>Not sure if many (or anybody) would see enough need for this- but it’s best use would be in setting a bike up for racing (improving body position during cornering, for multiple riders, ideal pedal output, etc.!).<<
Otherwise- for more casual use, these would function fantastic in the place of a laid-back seat post, and nearly all other specifically-needed seat mounts. And unlike any of those- which only can be adjusted up and down- this one is (once confirming post diameter/sleeve is correct) practically guaranteed to accomplish any positioning you’d want without changing from the usual seat clamps.
[will edit in the seat post measurements - diameters/length etc. Soon!]