These black plastic bowls are size M, and they fit the size 22 stones with plenty of room to spare.
There are 181 black and 180 white stones, about 6-7mm thick, slightly smaller than standard stones.
Shipping Details:
This item ships from Colorado, USA via UPS or USPS. Within 3 business days of purchase you will be emailed a tracking number that you can use to sign up for notifications. Box: 9x7x4 2.3lb