My bird loves them - he just eats them. My only complaint would be that the holes get blocked at times, so it can be difficult to thread the thicker piece of rope through them that you need to hold them up. But otherwise they are great. Of course, he chews them up so quickly that I have to keep buying them. I attach a piece of thick red thread to his cage and add a few blocks each day. If you have trouble pulling a rope through holes, just use a chopstick to push it through. Because of the size of the holes and also to give the bird something to hold on to, you will need a thicker rope. I kept a piece from a previous toy. Birds love to chew and need it, so providing them with such toys is very important. It's also important to make sure the toy is safe, as some types of wood are treated with chemicals and dyes that can harm the bird. In other words, buy them from a real pet company, not a toy or craft company. I was very happy with their quality.
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