Mulch Block BENEFITS- Weve all been there: lugging heavy bags of mulch to the car, straining our backs and making a mess. These dehydrated coir mulch blocks weigh just 9 pounds and are delivered right to your door. Just add water and in 20 minutes, youll have 2 cubic feet of earth-friendly mulch. MATERIALS- 100% organic, biodegradable and renewable, made from coconut husks! Coir has better water retention than bark, and reduces the temperature and moisture fluctuation by 50%. Keeps its rich color, too. PRODUCT DETAILS- Each block weighs just 9 lbs, makes 2 cubic feet of mulch Covers 12 sq. ft. at a 2" depth; 8 sq. ft at a 3" depth Made from coconut husks