This is a set of three 1cm, 2cm, and 3cm crystal fiber height adjustment pads for the Hitsuji no Iranai Makura Chouritsu (Pillow That Doesn't Need Sheep - Tuning) pillow. *Please note that the pillow itself is not included. I purchased the Hitsuji no Iranai Makura Chouritsu pillow about three weeks ago (early December 2025), but I preferred it without any height adjustment, so I am selling these. I only tried them out, and I haven't used them for sleeping. They are almost new, but please understand that they are used items before purchasing. If you would like to negotiate the price, I will consider it. Please submit your offer through the price reduction request section.