Massage device and system

A massage device kit, comprising:

• a main body having a bottom end portion and a top end portion with a dome shape, the bottom end portion having a bottommost surface having four sides and defined by an outermost edge, the main body including a cavity extending into the bottommost surface having a first volume, the cavity open to an external environment, the main body further including a plurality of recesses in the bottommost surface of the main body positioned about the cavity with one of the plurality of recesses positioned in each of the four sides of the bottommost surface and each of the plurality of recesses having a second volume that is less than the first volume;
• a peripheral ridge extending laterally outward from the outermost edge of the bottom end portion of the main body;
• wherein the top end portion includes an uppermost tip and the main body tapers from the peripheral ridge to the uppermost tip;
• a
• first base portion including an outermost edge and a first outer lip extending laterally outward from the outermost edge of the first base portion, the first base portion further including a first bottom surface having a first coefficient of friction and a first opening configured to be aligned with the cavity of the main body, the first outer lip configured to engage the peripheral ridge to secure the first base portion to the main body, the first base portion having a plurality of first protrusions configured to be received in the plurality of recesses of the main body, the plurality of first protrusions being integrally formed with the first base portion;
• and
• a second base portion including an outermost edge and a second outer lip extending laterally outward from the outermost edge of the second base portion, the second base portion further including a second bottom surface having a second coefficient of friction different from the first coefficient of friction and a second opening configured to be aligned with the cavity of the main body, the second outer lip configured to engage the peripheral ridge to secure the second base portion to the main body, the second base portion including a plurality of second protrusions configured to be received in the plurality of recesses of the main body, the plurality of second protrusions being integrally formed with the second base portion;
• wherein the first base portion and the second base portion are structured to be interchangeably coupleable to the main body with the cavity of the main body remaining open to the external environment through either the first opening of the first base portion or the second opening of the second base portion.

A method of assembling a massage device, comprising:

• inserting a peripheral ridge extending laterally outward from an outermost edge of a square-shaped bottom end portion of a dome-shaped main body of the massage device into an outer lip of a base portion, wherein a top end portion of the dome-shaped main body includes an uppermost tip and the main body tapers from the peripheral ridge to the uppermost tip, the outer lip including a longitudinal portion extending laterally outward from an outermost edge of the base portion and a lateral portion coupled to the longitudinal portion extending radially inward from the longitudinal portion toward the outermost edge;
• inserting a plurality of protrusions extending longitudinally from the base portion and being integrally formed with the base portion into a plurality of first recesses in a flat and planar bottommost surface of the main body having four sides, the plurality of first protrusions having a size and a shape corresponding to the plurality of first recesses and each of the plurality of first recesses having a first volume, the plurality of first recesses spaced about a second recess in the flat and planar bottommost surface of the main body with one first recess of the plurality of first recesses in each of the four sides of the flat and planar bottommost surface of the main body;
• setting the main body down on the base portion so that an outer surface of the bottom end portion is bounded by the outer lip of the base portion;
• and
• manipulating the outer lip of the base portion so the lateral portion of the outer lip covers the entirety of the peripheral ridge of the main body, including aligning an opening through the base portion with a second recess in the flat and planar bottommost surface of the main body of the massage device such that the second recess remains open to an external environment following coupling of the base portion to the main body, the second recess having a second volume greater than the first volume.