These Cinema Stealth Pivotal Posts certainly won't show up on any satelite, so you're safe if you've been trying desperately to hide your seat post, the easier option than digging holes around your garden though, is to simply drop that post a little lower, and feel like Chase Dehart every time you ride...

These 25.4mm diameter posts, feature 3D forged 6061-T6 aluminium creating a super strong design. Works with both Stealth and traditional Pivotal seats.
 
Length: Medium - 200mm, Large - 330mm
Diameter: 25.4mm
Material: 3D Forged 6061-T6 Aluminum
System: Stealth
Weight: Medium 136g, Large 170g