The Platypod Disc is a compact accessory for the Platypod Max, Ultra, and eXtreme camera supports. It's also an Arca-type mounting plate that can be used with Arca-compatible ball heads such as the Platypod Elite and Ergo. (It's actually included with the Elite and Ergo heads.)

Featuring a bubble level, the Platypod Disc can simply be attached to the Platypod Max, Ultra, or eXtreme to help level them. Or it can be used to convert the 3/8"-16 screw on the top of these plates to 1/4"-20. It has a 3/8"-16 female thread on the bottom and 1/4"-20 male on top to allow the conversion. The conversion enables you to mount a camera or other 1/4"-20 devices to the top of the Max, Ultra, or eXtreme camera supports.

Besides the 3/8"-16 thread on the bottom, the Platypod Disc has an Arca-type dovetail on the bottom. But the dovetail has a different design than standard Arca dovetails. It's round, but it fits in Arca clamps the same as a standard Arca dovetail does. But the round design allows you to rotate the disc within the clamp before securing it.

The Platypod Disc is made of aluminum and has a compact 2" diameter.