This standard class 18" from spoke to spoke nautical ships wheel is made from Acacia wood and to stand the test of time. Acacia is extremely hard wearing and strong wood that many compare with the Teak that we all know and love. The hub in the center is made of solid brass. This wheel can be used outside but we recommend that you apply a lacquer coating periodically to ensure protection from the elements. This ship wheel / ships helm will help turn any room, cabin, deck, patio or garden into your own Nautical Wonderland and enhance your nautical home decor. This ships steering wheel also makes a fantastic nautical gift.