I have recently gotten into buying various shackers and this just adds a cool lighting effect for each one. Very happy with the product and it's durability.

This lil thing does it all, so long as “all” means underglows a shaker when you set one on it! You like colors? This thing’s got COLORS. Blue colors, and red colors, and green colors, and even MORE colors. What a thing to have! Shine bright like a coaster. That’s what Rhianna says.

The coaster kept my desk dry and my cup lights up

The coaster came without the need for batteries, and has a little pressure gauge for the lights, which lets you avoid needing to turn it on and off.
Super cool looking with multiple of the different cups I have.

Do you like burning money?! Well this is the plastic garbage your gamer destroyed taste will absolutely love. Works good and, "wow so pretty."