Compressed Coconut Coir Brick - 650gm / 1.43lb 100% natural, renewable replacement for peat moss, rockwool & perlite Compressed bricks are easy to handle and store This disease resistant / pH balanced growing medium provides excellent air space and water holding capacity Holds between 8 & 10 times its volume in water New box contains : 1 x 650g Coconut Coir Brick