This is an amazing adapter! You can stack 1 or up to 5 different size cymbals -- building a tree simply by adding stackers one atop another. A favorite for percussionists. This adapter gives you a 3" - 4" span between each cymbal. Note:REMEMBER WHEN STACKING THAT THE ONLY TIME A 6MM IS USED IS WHEN THE STAND IS 6MM. YOU MUST ALWAYS STACK WITH THE 8MM!