* LEGO® Mini Green Ninja Mech Dragon (item 30428) offer is valid on shop.LEGO.com and at LEGO Stores from September 4 through 11:59pm EST, September 21, 2017 or while supplies last only. Qualifying purchase must be equal to or greater than $35 in merchandise only; any applicable taxes, shipping charges, or value of gift cards purchased do not apply to merchandise total. Offer excludes Bricks & Pieces and backorder items. Cannot be applied to previous purchases or combined with any other discount, offer or free gift. One free set per household. Item is valued at approximately a $3.99 (US) / $4.99 (CA) retail value and cannot be exchanged or substituted for any other item or cash value. Item is available exclusively through this offer; additional sets cannot be purchased.  Offers not valid at LEGOLAND® Parks or LEGOLAND Discovery Centers. The LEGO Group reserves the right to cancel or modify these promotions at any time without advance notice.