Size Description:
Three layers 30cm long: Length 30cm 4.5cm wide each layer 4cm high (three layers 12cm wide and 15cm)
Three 40cm long: 40cm in length 4.5cm in width per layer 4cm in height (12cm in height and 15cm in height)
Four layers 30cm long: Length 30cm 4.5cm wide each layer 4cm high (16cm wide four layers of 20cm)
Four layers 40cm long: 40cm in length 4.5cm in width per layer 4cm in height (16cm in height and 20cm in height)
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