Our burning tarts oils have a great throw scent, burn slowly, and give the home a nice fragrance without a chemical after-smell that lasts for hours. Bottles are 4oz sizes. Suggested use: Use in burners made for burning tart, and candle oils. Many fragrances are available and we make custom fragrances as well. They are not suggested for essential oil diffusers, because the oils don't break down properly and will clog it up. How to use: You can add warm water to your burner (never use cold water, it could crack your glass), and add a squirt of oil to your water for a nice mellow scent, or you can use full strength for a stronger long-lasting scent. Note: Can take = 7-14 days to complete blending the oils and ship. Our average shipping time is approximately 7 days. We also make 16oz containers at $25.00 per bottle. Note: We update inventory daily