I saw this at Amazon.com.

Problem:
“Pair” is a singular noun being used incorrectly as a plural noun, and two commas are missing.

Explanation:
As I wrote last November, two of anything together is a single pair. Multiples of this means multiple pairs.

I continue to believe that use of “pair” instead of “pairs” helps to prove my “Devolution toward Simpler” linguistic hypothesis. It is simpler to say “pair” than to say “pairs”.

Beyond the “pair” problem, the product heading is missing a couple of commas.

“Gold” and “Angled” and “Spade” modify the noun “Connectors”; when one has multiple modifiers of a noun, commas should appear between the modifiers (in this case to get “Gold, Angled, Spade Connectors”).

I believe that omission of commas in a multiple-modifiers situation also is consistent with my “Devolution toward Simpler” hypothesis. It’s simpler to omit the commas than to include them, and advertising copywriters lean toward simpler text, even if it is grammatically incorrect and is more difficult to read.

Solution:
“Monster … Gold, Angled, Spade Connectors (2 Pairs)”