Square button with a bit of sheen and rounded edges. The base, sides and back are rich black resin. The dots are bamboo shoots, cut sideways; you can see the grain if you look closely.  Shank back. This is an unusual, sleek, attractive button. They're almost 1/4" thick with the shank. Durable and higher end; will wash well and hold up well. Simple, timeless design that our customers love; you will too.  

The smaller size is 15/16".  Larger size is 1-1/8".