Natural Crystal Materials -- The Agate Slices Are Natural,But The Purple Colors Are Dyed To Enhance The Beauty Of The Outlook.Finely Polished For The Surface,Irregular Round Shape; Some Crystal Slices Included A Special Geode Quartz Druzy Or Geode Drusy,But Not For Each Agate Slice. .Size Details -- Semi Precious Stone Pendant Approx 1.9" - 2.7" (5Cm-7Cm) In Length; 0.2" - 0.3"(0.5-0.9Cm) In Thickness; Adjustable Cord Circumference From 17.3" To 30"; One Size Fits Most. .Best Gift -- Coming With A Branded Gift Bag. Perfect Present For Girlfriend,Boyfriend,Wife,Husband,Kid,Child,Family Or Friend On Birthday,Anniversary,Christmas, Valentine'S Day, Mother'S Day, Party,Vocation,Etc; Causal,Stylish,Simply But Eye-Catching. .Guarding & Healing Pendant -- Agates Attract Strength, Is A Protection From Bad Dreams,Stress And Negative Energy.Also As A Reiki Stone For Children'S Amulets, Jewelry, Or Just To Carry In A Pocket Or Car. Balancing Chakra And Deepening Meditation.