Our in line skate bubbles make the perfect hand out at skating parties. Use our in line skate bubbles are great for redemption prizes, too. Our colorful 2 1/2" in-line skate is filled with 4 ounces of bubbles. Our assorted color in-line skate bubble necklaces come 1 dozen in a display box. . A brief Note about Bubbles: When Bubbles leave our shipping dock, they are filled to the top with bubble juice. During transit to you several things may happen. 1. They could leak due to rough handling. 2. They could freeze (during winter). 3. They could evaporate. We have found that this happens very rarely but on the occasion they do we recommend you refill the bottles with a soapy (detergent) water solution. It will work as well as our genuine bubble juice. Since this is a problem experienced by all wholesalers we will not be able to accept claims for credit or replacement of bubble bottles that are not totally full. Thank you for your understanding.