1.Material:Imitate Pearl.Environmental protection zinc alloy(Lead-free,nickel-free). 2.Size:Necklace perimeter and extend chain 45+7.5cm(17.71"+2.95").Earrings size 3.5X1.5cm(1.38X0.6") 3.Pearl size(Order from big to small):30mm,25mm,23mm,20mm,18mm,16mm,14mm,12mm,10mm,8mm,6mm 4.You can get 1 X Necklace,1 pair of earrings.Can be a great gift to you loved ones .Party wedding costume jewelry ornaments and can go with almost any outfit. 5.Jewelry maintenance:①Away from the chemicals.②Don't wear it when you sleep or take a bath.③Use soft cloth to wipe if it be wet.④ Avoiding collision.