The Yoya Liquipen Liquid Motion Bubbler Pens Toy (3 Pack) is a fun and unique writing tool that allows you to write with flowing, animated lines. These pens create mesmerizing bubbles as they write, adding a playful element to your writing experience. The set of three pens is lightweight at 5 ounces, making them easy to handle and transport. Perfect for creative individuals or anyone looking to add some flair to their writing. Created by YoYa Toys, these pens are sure to provide hours of entertainment.