Top of the range Rockshox quick-release Maxle rear axle.
If you're looking for a quick-release rear axle, this is the one. It's light, well made and reliable. It's also adjustable so you can get the tension on the quick release just right and the angle of the lver where it needs to be.
Compatible with the Airdrop Bitmap, Edit v3 and most Boost 148x12mm frames that use the Rockshox Maxle standard.