These are the best sponges and they are environmentally friendly. They are made with natural, unbleached cellulose, 100% plant based with a loofah scrubby. You can sterilize them on the top shelf of the dishwasher or soak them in boiling water. There is no glue, they are hand sewn and they are dye free.

I buy them at Whole Foods, about $4.99 for a package of two.

They last a long time. Gave rating of 4 out of 5 stars because scrubby part and sponge part tends to partly separate after awhile.  Will continue to use them.