This is on sale now on Facebook if you are interested the BIN is $40 + $10 shipping. Base is included. LED colors rotate: blue, green, orange, red, purple.
3 AAA Battery not incl.
My wife said I needed to scale down the size on my pendants. Here is one about 5X4 cm (2″X1.5″). It is hard to get the implosion stile to work very much smaller.
Here is one even smaller 3X2cm (1.5X7/8ths inches).