Bamboo Coaster (opera face) and Microfiber Towel Gift Set. 1. This gift bag contains a set of six bamboo coasters (opera face) with a holder and two microfiber towels. 2. Bamboo coasters are made of premium quality bamboo, designed for function and style, and inspired by Beijing Opera. Color: natural, multi. diameter: 3 3/4". 3. 8" square Ultra Absorbent Microfiber Towels in deep blue, pink. These multi purpose cloths clean glass, furniture, or any applicable surfaces like nothing else. Each towel is individually packed in a 4"x10" reclosable 2 Mil zipper gag. Gift Pak.