These high absorbent meltblown pads and rolls use high quality Exxon technology. Pound for pound, the pads/rolls offer some of the highest absorbency on the market. Universal (Gray) Meltblown Sonic Bonded Pads/Rolls / - Single layer of high quality polypropylene fibers bonded sonically together, creating a dimple surface - Medium weight 100 pads absorb up to 20 gallons 1 roll absorbs up to 39 gallons - Pads packaged 100 per box; Rolls packaged individually.