It’s a like-new set of 3 coasters designed to look like NASA’s James Webb Space Telescope (JWST), launched in 2021. The coasters have gold reflective surfaces that evoke the telescope’s iconic primary mirror, with hexagons arranged in a honeycomb-like pattern. The coasters can be stacked on a black holder when not in use. Purchased from an artisan on Etsy. Each coaster is about 4” x 4”.