These aren't made from a very heavy-duty material; however, they have held up well for over a year. With this set I got two of each variety. I ended up cutting one of each tie shorter for my son to wear. Because the material is so slick (and a little on the shiny side), the knot doesn't stay extremely tight. I find myself having to tighten the knot several times throughout the day. Overall, a good product.
Rating: [4 of 5 Stars!]