Most polka dot agates have, well, polka dots. This one is unusual--Mother Nature gave it swirls and twisters of desert colors in the middle of a windstorm. It measures 1.5" long by x .1.25" wide is attached to a gold-plated backing and includes both a 16" 1 mm sterling snake chain and an 18" 2 mm black silicone cord. Like more than one stone but don't need two sets of cords/necklaces? Purchase them both and $16 will be refunded to you. (Second stone only (without additional cords) is $10.00).