Wearing Method: Align the magnets on both sides and hold for 2 seconds to successfully wear, The magnet is stable and comfortable. Do not worry about the magnetic force, they are comfortable enough to wear the whole day and do not fall off easily. Suitable Size: 16G/1.2mm Pin Thickness, 14mm Inner Diameter, Own 4mm Ball, Arrow, crystal ball 3 Wear Options, Make You Attractive in the Crowds. Quality Material: Made of 316L stainless classy steel.Nickel-free and Lead-free and Hypoallergenic…