PiercingJ Vintage Hollow Silvery Stainless Steel Floating Charm Memory Photo Locket Pendant Hollow Locket desgign. You can put photo of your family, lover friend etc. If you want to put charms it it, the diameter of the charm must be larger than 20mm in case the charms would fall out because of the hollow design. Metarial:Stainless Steel Diameter: 30mm Package Included: Only 1 pendant