4mm Natural Tourmaline Genuine Semi-precious Gemstones Long Necklace 4 Layers Wrapped Bracelets 2 in 1 Beads size 4mm , total weight 20g , Stretchy,loose, Size fit 7.5 - 8.5 Inch better Only 1 strand , to be 4 layers , should be wrapped by yourself Packing:with opp bag,safe Vintage Retro style , A classic and natural way to accessorize and wear its beauty