This Inner Stand / Insert is made to fit the GI Joe Cobra S.N.A.K.E Armor made by the profile Destro. This is for his Classified series S.N.A.K.E armor only. It will not fit the 3.75" action figure armor. It is designed to not slip out of the body or the feet when the model is glued together. It leaves a little bit of slack to function like the old school inner stand. Have fun 3D printing and building!
Give Destro a follow and see his other models at @Destros_Minion
Thank him for his hard work on the armor by giving him a BOOST!
https://makerworld.com/en/models/178413#profileId-196293