The diameter of the neck ball joint is 5mm and can be replaced with the head parts of other characters from Frame Arms Girl or ARCANADEA

This is a Teenage Mutant Ninja Turtles Tubbz PVC Figure Rocksteady from Numskull

A classic AEUG mobile suit rendered with modern HG engineering for easy assembly and solid articulation

The Pagetti Rook™ Sixth Scale High-End Collectible Figure is the latest addition to Sideshow's Scum & Villainy line of high-end collectibles

For display versatility

Caylus vs. Foltyn Plush Figure Aura 15 cm Blind Box Display (8) Critical Role The diameter of the neckThis display contains 8 15 cm Mystery Aura Plush Figures from Caylus vs. Foltyn. An officially licensed product by BOTI.