Korney Board Aids Slipp-Nott Base/Sheets (18"x19" Base)Slipp Nott System Designed to remove dirt and debris off shoes for better floor traction and less slipping on the court. Eliminate hand wiping of the shoe soles. Have your basketball players simple step on and off the Slipp Nott before they hit the court so they can have better traction on gym floors. The sheets are transparent so its easy to notice when top sheet is soiled.. for a new sheet, simply peel off the top sheet for a new sticky sheet. Ideal