... .Competitive price 3.High resistance 4.Timely delivery bluestone tumbled Blue limestone,China bluestoen,good indoor and outdoor floor paving ... grey,etc.4)Finished:Honed,Polished,Flamed,Bush-hammered,Chisel,Tumbled,Natural split,etc.5)Size:30x30cm,40x40cm,50x50cm,60x60cm,80x80cm ... outside reinforce strong enough for long distance ocean transport. bluestone tumbled