Abstract: A caster comprises a body including a stem cavity with a stem of the caster rotatably mounted in the stem cavity to permit rotation of the stem relative to the body about a stem access. The stem may comprise a spline shaft extending from the stem into the stem cavity. The stem and spline shaft are operatively connected. The stem cavity may have a spline bushing. The spline bushing and the body are operatively connected to each other. The spline shaft and the spline bushing are releasbeably interlockable. One of the spline bushing and the spline shaft may be movable in a direction along the stem axis between the swivel position wherein the spline shaft is not engaged with the spline bushing, and a fixed position wherein the spline shaft is engaged with the spline bushing.