They are quick release, adjustable, reusable and they float if dropped in the water. 2 per pack, color varies. 4 mm high density foam helps prevent fishing butlers from scratching or denting your fishing rod.
Now that I have retired from selling at outdoor/fishing shows I have a limited supply of line left over for sale. This line has been kept out of the sun in a climate controlled environment (my basement). Makes a great add on to your order.