Our Items are All 100% Authentic. A manual might be in only Japanese. Please feel free to ask us. We would accept Return ONLY if the item were defective. Please contact me first before sending your item.International Buyers - Please Note. This item is in the category "Home & Garden\Tools & Workshop Equipment\Hand Tools\Wrenches\Wrench Sets". The seller is "tokyoselect55" and is located in this country: JP. This item can be shipped worldwide.