The Replacement Cap for the Pocket 3 Pro case fits both the Pro Case for the DJI Osmo Pocket 3 with battery extension, the Pro Case for the DJI Osmo Pocket 3 with tripod attachment and the Water Resistant Pro Case. 

Specifications

Weight: 80g 

Dimensions:

Cap with screen cover extension: 50x58x140mm (2x2.3x5.5in)

Note: Extreme temperatures over 55C / 130F can cause permanent deformation

What's in the box:

Replacement Cap for Pocket 3 Pro case

Warranty: 12 months