Twitter Inc. is testing a way for users to post photos and videos that disappear after 24 hours -- similar to Stories products offered on rival Snapchat.

Twitter says that these disappearing posts called Fleets -- short for fleeting tweets -- awill ease the pressure of online sharing. Similar to tweets, Fleets are text-first but videos, GIFs and photos can be added.

“Some of you tell us that you’re uncomfortable to Tweet because Tweets are public, feel permanent, and have public counts,” Twitter wrote in a blog post on Wednesday. “We hope that people who don’t usually feel comfortable Tweeting use Fleets to share musings about what’s on their mind.” The test is only available in Brazil.

Disappearing posts have become a popular way to share on competing social sites, including Faceboo’s Instagram and Snap’s Snapchat. Instagram’s Stories feature already makes up about 10% of all ad spending on Facebook properties.