On this page you can find the original construction manual for the LEGO 4521 set. With the assembly manual you can easily learn how to build the 4521 Fill Your Own 1-Litre Bag step by step. The set was released in 2004.
The assembly guide is prepared in a very understandable way for children and adult LEGO enthusiasts. A total of 24 picture galleries are shown, explaining the step-by-step construction stages for 1 different structures.
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