The yonex bg66 ultimax badminton string is yonexs thinnest multifilament string that provides perfect blend of power and control the string utilises nylon coating for superior durability and high intensity core with maximum number of strands to ensure excellent precision and comfort the string generates sharper hitting sound that adds power and confidence to your game the yonex bg66 ultimax has a 065mm gauge and is available in 200m 656ft reel