Terahertz Small Pebble Stones - Extra Small Size - Approximately 200g - Bargain Very fine pebble stones. Smaller than the 1.5kg for 7000 yen option. No discounts, please purchase as is. Contains mixed in pebble stones such as crystal and tiger eye, so please use them in a pillow or bag. Ideal for dogs and cats. 500g - 2799 yen 1kg - 5000 yen 1.5kg - 6500 yen The terahertz itself is high-quality, extra-small terahertz pebble stones, but due to the mixing of other stones, it is a bargain price and no discounts are available.