Smarts Sense are the complete heavy duty puppy pads that provide up to 8 hours of protection. 5-layers include quilted tops he polymer gel layer absorbs the pee faster and turns it into a solid gel that helps control odor, they take the place of up to 8 regular economy pads so they keeps working and protecting expensive flooring. They are excellent for dogs left alone for longer periods as well older and sick dogs that pee more frequently. Can handle a single medium to large size dogs up to 80lbs or even 2 dogs totaling 80lbs. 150 pads per boxChoose up to 600 pads from drop down menuBulk discounts-the more you buy the less you pay23x36″ (compliant up to 1″ in each direction) Multi-layer constructionPolymer odor fighting layer with rapid absorption Made for dogs up to 80lbsMultiple dog useLasts up to 8 hoursAvg. weight 56 gramsFREE FAST DELIVERY *****Free samples are sent only upon request. Free samples will result in a delay in shipping order