The most direct way to get exact pieces is through LEGO.com .
For mechanical builds or large projects, specialized packs are often more cost-effective: buy individual lego parts
💡 : Use a part's "Design ID" (usually a 4 or 5-digit number molded inside the brick) to search for it exactly on third-party sites. The most direct way to get exact pieces is through LEGO
If you tell me or project you're working on, I can find the exact part numbers or the best bulk deal for you. LEGO® Pick a Brick | Official LEGO® Shop US buy individual lego parts