are 3.25" (80 mm) model assembly figures/toys. Some come prebuilt/ premade while others you have to assemble yourself. Once assembled they can be customized with stickers and different pieces such as guns or swords or hats. The design principle behind a STIKFAS is that all of the joints are ball/socket thus allowing you to set them up in various poses. Its this pose ability that makes them suited to stop motion animation. The figures are very light so they can be stuck down with either blue tack or if you which you can drill a hole in their feet and screw them down. Also Stikfas have small square notches on their bodies which allow for magnets to be inserted. These notches can be found on the upper legs, feet and upper body section. The curved U shaped hands are also the same diameter as the notches. Once inserted into any of these areas, the magnets allow the Stikfas to be posed while adhered to a magnetic surface so they won't fall over when making your stop motion animation.
The phrase / word "Stikfamation" has sometimes been used to refer to stop motion animation with stikfas.