Heart shaped necklace chains are made from stainless steel. They are anti-allergic, unfading, nickel and lead free. Pendants are made from brass and cubic zirconia Necklace is approx. 35cm with 5cm extending chain. Bracelet is approx. 15.5cm with 3cm extending chain Earring hoops are made from stainless steel Please do not hesitate to contact me if you have any questions :) Delivery is not tracked. Option to upgrade to tracked delivery can be done at checkout.