Pack of 10 patented rubber o-rings for your JewelPops. 
Kameleon's ingenious interchangeable jewelry systems is designed so that hundreds of styles of JewelPops fit into a wide spectrum of silver settings. The JewelPops are securely held in place with the rubber o-ring, which is effective for thousands of inserts and removals. 
Stock up on some extras so that you can change the o-ring on your Pops should they become 'sticky' or damaged over time.