SmallRig Standard Cage Kit for iPhone 18 Pro Max 6901

The SmallRig 6901 aluminium cage for the iPhone 18 Pro Max carries the patented SR-MicroSlide rail all the way around, eight 1/4"-20 threads and "HawkLock" H11 quick release. A 67mm attachable filter backplate and a cold shoe adapter are included.

The cage wraps the iPhone 18 Pro Max in an aluminium frame and turns it into a tool for video, live streaming and short films.

Unrestricted Movement for Mobile Creation

Patented All-Around MicroSlide Rail

Smooth Sliding with Seamless Look

Adjustable Positioning for Balanced Setup

Dual-Locking for Secure Hold

Double the Safety

Cage and SR-MicroSlide rail

• SmallRig's patented SR-MicroSlide rail runs all the way around: accessories slide on in a single move, in about a second, and sit exactly where you want them.
• The rail takes cold shoe mounts, NATO rails, Arca-Swiss adapters, handles, and through them microphones, monitors, lights and a tripod.
• Sliding along the rail is also how the rig gets balanced: shift the heavy piece and it stops tipping in your hand.
• Eight anti-twist 1/4"-20 threaded holes.
• Four quick release interfaces compatible with the "HawkLock" H11 ecosystem.
• At all four corners, holes for a wrist strap or a shoulder strap with a cord up to 2 mm.

Protection and phone access

• The back stays open, so MagSafe still works and the phone runs cooler.
• The cage covers none of the buttons, ports, the ultra-wide camera or the wireless charging area.
• A cover plate and a locking toggle hold the phone — two independent safeguards against a drop.

What's in the Standard kit

• A 67mm attachable filter backplate.
• One adapter with a cold shoe mount for SR-MicroSlide.
• Sold separately: the T-Mount lens backplate, the 17mm backplate and the 67mm threaded filter backplate.

Differences between the kits

• Standard (6900, 6901): the cage with a 67mm attachable filter backplate and one cold shoe adapter.
• Creator (6902, 6903): the same cage plus two rotating handles — one of them with a wireless controller — and a second cold shoe adapter.
• Cinema (6904, 6905): swaps those for two wooden handles, a detachable NATO rail, an Arca-Swiss plate for a tripod and all three lens backplates (T-Mount, 17mm and the 67mm filter one).

Any other backplates and adapters are sold separately. Do not use this product in environments with strong acids or alkalis.