The 2-1/2 inch length of ARDIPEG Self-Leveling Pins makes them suitable for use in various thicknesses of self-leveling underlayments, providing versatility and flexibility on the job site. With ARDIPEG Self-Leveling Pins, installers can achieve precise and uniform coverage of the underlayment material across the entire surface, reducing the need for manual adjustment and minimizing the risk of unevenness or imperfections in the finished floor.