Science Puzzle Little Wrench DIY Material Hand-cranked Generator Experimental Assembled Model Description:Style:puzzleType:practiceMaterial:wood Color:As the picture Size about:10*6*9cmWeight about:150gPackage included:1xmaterial package1xglueStyle:puzzleType:practiceMaterial:woodColor:yellowSize about:10*6*9cmWeight about:150g Package included:1xmaterial package1xglue