ARK’s Probe Tip is the most versatile tip attachment for the Z-Vibe®. Its rectangular shape features three different surfaces: bumpy, striated, and smooth. Use it to provide varied sensory input to the gums, palate, cheeks, tongue, and lips. It can also be used to provide targeted tactile cues during oral motor therapy. This soft version (purple) of the regular blue tip is recommended for individuals with a strong bite reflex and/or sensory issues.