I bought 3 boxes of doubles for a total of 6 globes. The only one that is okay to use is one color from each box. The other color from each box has a tip too small to fill with water. I used a pencil and still got dirt clogged in them. I do not like them at all. I cleaned the two I tried and put them back in the box and will sell them all on internet. I was so excited to get them. I can't wait to get rid of them. If the tips were all bigger - they would work better. read full review »