Concrete Blocks

BLOCKS: 0.10 (09x19x39) - with bottom 0.15 (14x19x39) - hollow 0.15 (14x19x39) - with bottom 0.20 (19x19x39) - hollow 0.20 (19x19x39) - with bottom GUTTERS: Half gutter 0.10 U-shaped - (09x19x19) Half gutter 0.15 U-shaped - (14x19x19) Half gutter 0.20 U-shaped - (19x19x19) Full gutter 0.15 U-shaped - (14x19x39)