Dry'n Shape SpaDescription Get all the elements of brush care in one groundbreaking gadget. The Sigma Dryn Shape Spa features the best of both innovative tools; the world famous brush cleaning textures of Sigma Spa and the top selling Sigma Dryn Shape Tower. Deeply clean your brush collection using the award winning textures at the core of the tool, then efficiently dry up to 18 brushes at once using the specially developed elastic bands and SigmaSnap technology.