The product is made from two metal skewers approximately 10" in length. The string is bright orange elastic cord so it is easy to get the cord taught and provides about 12 feet of alignment and will not easily tangle when wrapped back up for storage.
By placing the ball under the string it is easy to see if the ball is under the eyes and provides a consistent reference for setup and stroke path. Three plastic beads that slide on the string provide a reference for stroke length.
If you want a quick and easy product for putting alignment and stroke path then the Bee Line is for you.