Kirkland golf balls are a brand of golf balls manufactured by Costco, a large American multinational corporation that operates a chain of membership-only warehouse clubs. Costco’s in-house brand, Kirkland Signature, includes a variety of products, among which are the Kirkland golf balls. However, Costco does not manufacture these balls themselves; they contract the manufacturing to third-party companies. The specific manufacturer(s) of Kirkland golf balls have been a subject of some speculation and might change over time, as Costco could switch suppliers based on various business considerations.
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