Have used these for trellising tomatoes and cucumbers for commercial production. They are worth the money in time saved, and cheaper than clips if you're doing any kind of volume production. They have many other uses, such as tying together bamboo trellises, and tying plants to stakes in pots, as in producing a 1 gallon tomato for transplant or bedding plant. A little graphite dust on the moving parts will help keep the mechanism jam-free.
Reviewed by johniji on 7/11/13