The bullet time bundle are for for Insta360 X3,and designed for bullet time shooting; Stick is invisible in photos and videos. This bullet time kit is made of aluminum alloy + ABS, and aerospace aluminum alloy material opens a new era of selfie. The invisible stick is super lightweight convenient to carry around, thanks to the hidden retractable design,37cm You can put it in pockets or other small bags. Whenver you want to record a beautiful moment, it always be there. It's 157cm for extension max. The 360 degrees rotation handle Stick are both sturdy, and easy to extend, Bullet time handle thread anti-smashing grip has a texture. Rotate stick to left to lock,and rotate stick to right to loosen. Handle bar is slippery-proof; There is standard 1/4" screw at the bottom of handle. What's more, you will be using bullet time cord as a desktop phone holder, doing live internet broadcast, binge-watching TV shows, etc. With a very flexible adjustable view height, the nape ache, shoulder pain will be substantially reduced. You can use it for a close self-photography or extend it to get a larger scenery.