This Paw Print Diffuser Necklace is beautiful! The open cage design diffuser charm opens by hinge and fits up to a max of 8mm bead which allows fragrance to flow through and is about 3/4" tall and 3/4" wide. You can choose the silver charm on a stainless steel link chain, a rainbow charm on a black lead free nickel free alloy chain or a black charm on a black lead free nickel free alloy link chain. If you prefer a black or silver chain with any of the charm colors message us. You do get a Free 6mm Lava Rock bead with your purchase of this necklace. They are shown in the last picture and come in white, pink, purple, light green, olive green, light blue, dark blue, yellowish gold, black, red or brown. The bead will be sent in random color. You are welcome to message us with a request of one of these colors and if available we are happy to accommodate you. If you do decide to message us with a color bead or chain color request, please do so promptly as we ship out our orders quickly. We do sell the matching diffuser bracelet (shown in the next to last picture) in a separate listing! If you purchase both items you will receive the 10% discount for order of $25. or more. Fabulous for yourself or as a gift!