Metal materials are corrosion-resistant and durable, making them a fashionable symbol of outdoor sports. The metal-designed clips can be firmly attached to the hat, and when paired with the magnetic ball coins, they are a unique manifestation of the Goff enthusiasts and club composition.

The metal material of the cap clip can support trademark stamping or laser engraving, and can be applied to outdoor sports hats, serving as decorative elements such as baseball caps and sun hats.