BDuck Tub Tread Set of 5 ReviewbP PP Duck Tub Tread Set of 5 PAdd our Tub Treads to your bathtub or shower stall to create a grippy, non-slip surfacePThe tub treads have non-slip suction cups, so they're easy to apply and removePCrafted of soft, textured vinyl, the treads are anti-bacterial and mildew resistantPNot for use on uneven or treated surfacesPMeasurements: 4.