were there any specific product that come under this treaty?
yes, sugar and other products.
Reciprocity Treaty of 1875
The treaty gave free access to the United States market for sugar and other products grown in the Kingdom of Hawaii starting in September 1876. In return
who is elias abraham rosenberg? An adviser and friend of King Kalākaua. which kingdom did the latter reign? The Kingdom of Hawaiʻi. was he into politics? Yes, before coronation he was a member of the Privy Council of State and a member of the House of Nobles. what was his role in promoting education? He started the Education of Hawaiian Youths Abroad  program. what was the program about? It was a government -funded educational program in which Hawaiian students were selected for enrollment in a university or apprenticeship to a trade, outside the Kingdom of Hawaii. can you tell me something about the treaty that got extended? It was a free trade agreement between the Hawaiian kingdom and the United States of America.
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Reciprocity Treaty of 1875 [SEP] Introduction
The Treaty of reciprocity between the United States of America and the Hawaiian Kingdom (Hawaiian: "Kuʻikahi Pānaʻi Like") was a free trade agreement signed and ratified in 1875 that is generally known as the Reciprocity Treaty of 1875. The treaty gave free access to the United States market for sugar and other products grown in the Kingdom of Hawaii starting in September 1876. In return, the US gained lands in the area known as Puu Loa for what became known as the Pearl Harbor naval base. The treaty led to large investment by Americans in sugarcane plantations in Hawaii.