A light-up novelty ring being sold at the Taronga Zoo gift shop to mark Vivid Sydney has been taken off the shelves amid safety concerns.

The rubber ring, which is now being assessed by the Australian Competition and Consumer Commission and NSW Fair Trading, was removed from sale after one consumer found it had separated in the hands of her two-year-old son, exposing a small part made up of three stacked button batteries.

Vivid Sydney was not affiliated with the manufacture or sale of the product.



The ACCC and Fair Trading are looking into the product "as a matter of urgency" and have advised that children should not have access to it.

"Supply should be stopped, and if you already have one the risk is best managed by putting it in the bin," an ACCC spokesperson said.