18pcs White Safety Bath Tub Shower Adhesive Non-slip Anti-slip Tape Mat Treads Helps prevent slips & falls. 100%Water-proof Different size, the biggest one is 10.2cm x 10.2cm / 4 inch x 4 inch. Comfortable for bare feet Strong Self-Adhesion and removable. Cut to size with scissors Use for:bath, shower, steps, boats ladders, workshop, etc. Easy Installation - Takes less than 5 minutes Dimension: 10.2cm x 10.2cm / 4 inch x 4 inch , APPROX. Package: 1SET 18 PIECES