HND&reg; Novety LED Flashing Light Up Jelly Bumpy Ring, For Party,Cutumes,Birthday,Wedding And Any Celebrations. 24-Pack LED rings are a great accessory for all celebrations, parties, and occasions. Our LED bumpy rings are made of a stretchy, jelly material and feature assorted colored LEDs. To activate, simply press on the ring and it will start flashing. Non-replaceable batteries are included and installed