Check the listing for details. 9.9lbs LECA Lightweight Expanded Clay Aggregate Balls Semi Hydroponics Substrate. Condition: Used. Listed at 24.99 USD. The exact bag pictured is what you will get. I got this LECA in bulk second hand. The aggregate is not uniform, each one is a different shape, size, and color. Rinsing and boiling before use is recommended. A few balls may have a mineral buildup, this can be washed away. These can be used in hydroponic setups, including semi hydroponics. Can also be used as a mix in for potting soil to increase drainage. Works well as a drainage layer in a bioactive reptile or amphibian tank as well. Please see photos for condition and details before buying. Two shipping options are available, USPS Ground Advantage or Priority Mail Flat Rate Large Box. The flat rate option may be cheaper if you are further away from my location.