Simple pink gold magnetic necklace. "Magnetic Necklace" ★ Contains 4 permanent magnets with a magnetic flux density of 150mT (millitesla). Wearing the necklace activates the magnetism, and you'll unconsciously feel your neck area become lighter. "Metal Allergy-Friendly" ★ Surgical stainless steel is used for the material. It's rust-resistant, doesn't tarnish, and is a material with extremely low metal allergy properties, so even those with sensitive skin can wear it with peace of mind. "Chain Specifications" ★ Length: 45cm, Width: 0.2cm, Thickness: 0.2cm, Weight: 10g "Materials" ★ Surgical stainless steel, K18 pink gold plating, permanent magnets (4 pieces) "Package Contents" ★ Necklace * 1, Flannel bag * 1, Gift box * 1 ★ With a weight of only 10 grams, you won't have to worry about it during housework or walks... ★ This chain necklace has a smooth feel against the skin and naturally and simply adorns your neck, making it a daily accessory that suits any outfit or occasion. ★ The material uses the now-popular 316L surgical stainless steel, which is safe for those with metal allergies. ★ It's also resistant to rust and discoloration, so you don't have to worry about sweat during exercise or sudden rain... It's also fine for hot springs and swimming in the sea.