The library square with the points on is our sharpest, roughest feeling square. When pressed firmly, it provides a deep tissue stimulation effect without causing any harm or pain to your skin. It can also encourage movement of your fingers while sitting still, providing a sense of comfort. Some people find it helps them concentrate, while others find it distracting from their worries. Sensory preferences are unique to each individual and may change depending on their mood. Therefore, we suggest purchasing at least three different textures to enjoy.
 
Size: 45 mm²