I have up for bid 25 vintage bamboo and, what I have come to believe, bone. They have been carved and painted with the symbols that are shown in pics. The colors have faded to many of them and have some discoloration but they are still in great condition. They measure approximately 1 1/8" x 3/4" x 1/2" thick. These are great to collect, make jewelry, mosaics, beads, or any thing else you can think of. I have a couple of other sets listed if you care to take a look. Any questions please email me. Shipping is always FREE in the USA. Thanks for looking and .