Mesmerizing Mechanical Music Movement: Powered by a precision-built mechanical movement, the assembled harp features gears drive strings and automatically pluck, playing the timeless melody of “Ave Maria”

【Front】This rotary knob is used to enter the password to open the box. The password is set at the time of assembly. It cannot be changed when finished. The password is a three-digit number. You have 810 choices between 000 to 999, But 190 combinations were not available, please refer to the manual for details.

【1910s Vintage Car Model】The 3D wooden puzzle is a 1:15 replica of quintessential vintage car of 19th century. It features the quintessential outlook and details, making it collectible car model building kit. Final built size of 7.5x3.6x4.5 inch.

[ VINTAGE PIANO MODEL ] The ROKR Piano 3D puzzle is a 1/20 scaled reproduction of a classic musical instrument. Its base is designed to look like a book, and its transparent structure is filled with gears. Both adults will enjoy the process of assembling this intricate model and displaying it with pride. Once completed, the piano comes to life with a beautiful melody, 'Variations on the Canon,' playing from within.

【ILLUMINATED WORLD GLOBE】180pcs 3D puzzle for adults to craft a 11.5' tall antique-look globe with wooden base and LED. Beautiful for any bedroom or dorm.

New wooden marble run!Build it with 294 pieces and 10 marbles.The end result is pretty cool.It has a crank that uses large gears to move marbles up to the top of the machine where they roll down into different channels.