18mm Blocks Stepped - choose from 6 sizes (individual blocks not sets)

18mm blocks - choose from 5 sizes

1.8cm deep x 4cm high x 10cm long
1.8cm deep x 4cm high x 15cm long
1.8cm deep x 4cm high x 20cm long
1.8cm deep x 4cm high x 25cm long

1.8cm deep x 4cm high x 30cm long

1.8cm deep x 4cm high x 40cm long

NOTE: order singularly, do not tick diff

different sizes and then add to cart as this will add both sizes but we won't know how many of each size.

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