"balls of thread" is correct and usable in written English.
For example, "She kept several balls of thread in her sewing box to use for mending."
The different morphology between C-RGD (fibrous ball-of-thread-like) and G-FOAM (trabecular sponge-like) was evidenced by SEM analysis and X-ray micro-tomography, and was reflected by their different mechanical characteristics.
These are lasting fabrics that will hold their shape well and will not pill (develop the small balls of threads and fibers that collect on garments from wear).
When you see a man swallow 100 separate needles and a ball of thread, then regurgitate 100 perfectly threaded needles, "why?" must take its place in the queue behind "how on earth?" Sometimes, Penn and Teller tell us.
From Bensonhurst to Brownsville, the sense sometimes was of a city as a ball of thread unspooling.
Like Ariadne with her ball of thread, Clay navigates the maze-like story with perspicacity and ease.
Chelsea Through March 24 Ariadne, the clever heroine of Greek myth whose ball of thread helped Theseus escape from the Minotaur's labyrinth, makes an ideal subject for Elaine Reichek.
So I began to dig deep in my memory, and once I started, I found the beginning of the ball of thread, where to start.
The "tangled ball of thread" that you use to characterize democracy in Russia is no more or less complicated than the developmental challenges facing any democracy.
