Glow In The Dark Lightning Boomerangs With Boomerang Booklet! From the leading USA boomerang manufacturer, Colorado Boomerangs, LLC. Glow In The Dark Boomerang with Lightning Bolt Design! Includes access to our "How to Throw Boomerangs" videos. Designed by a Top competitor for ages = 8 - 70 years old. Includes our 22 page "How to Throw Boomerangs" booklet