Unlimited fun and stress relief—unique quiet-brain tool helps fidgety students focus. Interlocking pieces bend, scrunch and can be twisted into a variety of shapes and patterns. Measures over two-feet long. 33test33 Unlimited fun and stress relief—unique quiet-brain tool helps fidgety students focus. Interlocking pieces bend, scrunch and can be twisted into a variety of shapes and patterns. Measures over two-feet long.