Why they are unique

Blue diamond® condoms are unique. They are the only condoms clinically proven to make a man’s erection harder and firmer and are designed to give you and your partner an intensely satisfying sexual experience. 

Blue diamond® condoms contain the unique Zanifil® gel in the teat of the condom. Zanifil® works by stimulating blood flow within the penis which maximises hardness. The active ingredient in the Zanifil® gel is Glyceryl Trinitrate 1%. The condoms are electronically tested and manufactured to the highest quality in Germany. 
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