What is a beginner 3D metal puzzle? Our beginner 3d metal puzzles usually have between 50 and 200 pieces, and we have a wide selection of different models at Moyustore, with lots of detail, detailed paper instructions, and are easier to put together. These puzzles are perfect for families with young children, older adults, and beginners. Buying a set is cheaper than buying a single piece, and is ideal for young and older puzzle lovers. Please note that sometimes we ship randomly, for example, if you choose a butterfly set and the butterfly is out of stock, we will replace it with another butterfly that is in stock. Thank you for understanding.