HongJinTian Crystal Natural Rose Quartz Massage Tools Roller Stick 12cm(4.72") Made of natural rose quartz crystal stone measuring 4.72"long It is a wonderful stone for helping to relieve stress. an aid for channeling energy and meditation muscle roller for athletes,runners,hikers,bikers,good for relaxation and soothing frazzled nerves as natural crystal stone,each one is unique,please allow for slight variations