<b>Mix horticultural lava rock pebbles can be used for top dressing of plants, helps to maintain moisture, aerate soil, prevent erosion, and improve drainage.This is a premium quality lava rock substrate for potting Bonsai, succulents, cacti, and other plants.</b><br><br><b>Use More: These small horticultural lava rock are good for home decoration, craft projects, scene setting, fish tank, vase fillers, terrarium, fairy Gardening , flowerpot, succulent, cactus bonsai, houseplant, garden, outdoor decorative and more.</b><br><br><b>All of our mix horticultural lava rocks are made of natural stones, no additional fillers, dyes, or oils. Non-toxic, color won't fade away through time.</b><br><br><b>Features:</b><br><b>- Material: Mix Horticultural Lava Rock Pebbles</b><br><b>- Size: approx 0.15”-0.24” ( 4-6mm)</b><br><br><b>- Weight: 2.7 lbs (1230 g )</b><br><b>Mixed with four colors of stone: Black lava, red lava, green stone, yellow rocks</b><br>- No artificial colors, no dyes or chemicals</b><br><b>- Resists fading for long-lasting beauty. Natural sand is non-toxic.</b><br><b>- Easy zip resealable bag and well packed</b><br><b>- The sand stone may have dust during transportation.</b><br><b>- They are brighter after washing.</b><br><br><b>Top Dressing of Plants:</b><br><b>√ More perfect appearance</b><br><b>√ Stabilize the roots of plants</b><br><b>√ Keep the soil form shifting around</b><br><b>√ Mixed with soil mix to help plants breath</b><br><b>√ Mixed with soil mix to help maintain moisture</b><br><b>√ Mixed with soil mix to improve drainage</b><br><b>√ Mixed with soil mix to prevent erosion</b><br><b>√ Add as button pad in pots to help extra water flow out</b>