Photo 1 of BIOMAND 18LB Lava Rocks for Plants-3/8 Volcanic Rock for Succulent Potting Mix, Cactus, Orchids & Bonsai-Porous Horticultural Grit for Drainage, Aeration & pH Balance - Decorative Top Dressing

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Photo 1 of BIOMAND 18LB Lava Rocks for Plants-3/8 Volcanic Rock for Succulent Potting Mix, Cactus, Orchids & Bonsai-Porous Horticultural Grit for Drainage, Aeration & pH Balance - Decorative Top DressingPhoto 2 of BIOMAND 18LB Lava Rocks for Plants-3/8 Volcanic Rock for Succulent Potting Mix, Cactus, Orchids & Bonsai-Porous Horticultural Grit for Drainage, Aeration & pH Balance - Decorative Top Dressing