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DIY Maker Ultimate 37 in 1 Sensor Modules Learning Package Kit for Arduino UNO R3 Mega2560
Come with a big plastic box which have a small separate compartment for each module
With this 37 in 1 ultimate package
you can do almost all the experiment you can think of never need to worry about again you dont have proper materials this do save you a lot of time
so you just need to focus on your project be more creative
and make some amazing product