Worm Factory Refill Package (2 Pack)FREE SHIPPING on this product. USA only.** The kit includes: 16 cups of pumice 4 Pounds of olivine mineral rock dust 2 650g bricks of coconut coir When used as instructed this kit contains enough materials for at least 8 composting trays.

Overall Dimensions:  25 (l) x 25 (w) x 17 (h)

and prototype colors with no matches

These trays are compatible with all Worm Factory® models

giving your roots the space they need

rockwool & perlite

Most likely will be black but red or green are possible

• Easy to assemble and manage

The magnesium

These are not pretty but the worms don't care

4 Pounds of olivine mineral rock dust

1/2 Pound (about 500) Red Wiggler Worms (live worms do not come in box

compost and vermicompost