Abstract: Tree stands that may be removeably and replaceably attached to tree trunks having a wide variety of diameters are described. Tree stands that provide 360° platforms are also described. According to one exemplary embodiment, a tree stand may include a platform, a collar that may be removeably and replaceably attached to a tree trunk and that may include multiple first receiving portions, and multiple support bars supporting the platform on the collar. The multiple support bars may be removeably and replaceably insertable into the multiple first receiving portions.