| Wham-O Slip N Slide - 18 Single Lane Water Slide Children Ages 5+ The 18 long Wave Rider Slip N Slide is a single lane slide equipped with one side railing of sprinklers and a splash zone creating a wave of fun when you land. Wham-O has introduced its Original Slip ‘N Slide back in 1961 changing backyard fun... more | | $18.87 FREE shipping go to store |