Polished black rocks are suitable for electric fireplaces, and may be used in place of included media kits. Black rocks with diameters of 0.5 to 1.0 inches will fit into electric fireplaces as slim as 4-inches. Use on their own or blend the black rocks with crystal media kits. Sold in 5-lb bags; each bag will fill an extra-slim fireplace up to 60-inches wide. If your fireplace is wider or deeper, you will need more rocks. **Not suitable for gas or wood-burning fireplaces.
Polished Black Rocks for electric fireplaces – 0.5 to 1.0 inch diameter specifications
| Overall Size | 5 lb bag |
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