This is just a simple drink coaster with an optional holder that can hold 4 coasters.

The coasters are 80mm by 7mm with a 2mm indentation, leaving a small 4mm lip around the edge.

The holder can hold 4 coasters, and has slots down the sides to easily grab the coasters. The holder is 85mm by 34mm.

I plan on creating additional designs, but feel free to mix them up however you want!