Our Key West Mahi Mahi Dog Collar mimics the Dolphin Fish skin and it's bright color patterns that flickers and changes in wildly showing luminous colors that seem to change when seen from different angles . They usually are a vibrant green color with yellow and blue highlights, but they do alternate their colors to lighter shades of blues and yellows. If you love offshore fishing and want your dog to have a bright, head turning collar that looks great on male & female dogs alike, this is just for you! FREE SHIPPING ON ALL ORDERS!!