YAZILIND Multilayer Colorful Crystal Choker Necklace Round Bib Collar Chain Jewelry Pendant For Women All uses the manual polishing technology, Using the latest cutting technology smooth cutting crystal surface Style:Pendant Metal:Alloy Color:Blue Mainstone:Crystal all defects,30-Day Money Back Guarantee It usually takes around 20-25 days for arrival. Please choose the suitable shipping as needed , please ignore the Amazon shipping time . Non allergic, 100% scratch proof