Start by defining your build goal and then select an x64 lego brick that fits the size, ensures compatibility with your existing bricks, and supports the intended durability. Consider whether you need a solid color, a transparent option, or a specialized finish, and check if the brick is part of a brand's standard system to ensure smooth interlocking. Look for consistency across components to avoid mismatch as your model grows.

Compatibility hinges on standard interlock geometry and clutch strength. Ensure the stud arrangement lines up with regular bricks so connections grip securely, and that the underside supports tubes or ribbing typical of the system. For mixed-brand projects, look for bricks labeled as LEGO System compatible to maintain consistent fit.

A beginner should start with straightforward builds that emphasize basic connections and color matching. A seasoned builder can experiment with complex assemblies, layering bricks for strength, and planning color schemes to create a specific look. In both cases, align your choices with your existing bricks to ensure smooth assembly.

Clean bricks with warm water and a mild dish soap, then let them air dry. Avoid dishwasher heat and harsh cleaners that can degrade plastic. Store bricks in labeled bins to prevent loss and keep compatibility by separating by size.

Look for bricks from LEGO and compatible brands that advertise LEGO system compatibility. Check if the brick follows standard dimensions and interlock geometry so it works with your current sets. Consider consistency of color range and finish across brands to avoid mixed tones.

Most bricks are ABS plastic with a wide color range, so pick colors that match your project or let you stand out. Consider whether you need a transparent, opaque, or metallic finish for the effect you want. If you build for display, choose colors and finishes that resist fading over time and pair well with other bricks.