Snaps on Bottom of Door Soft Fin Drip Rail Assists in Deflecting Water Back Into Enclosure Clear Bottom Wipe with Drip Rail snaps onto bottom of door. The soft wipes on bottom create a water resistant seal. Soft Fin Drip Rail sheds water back into the shower stall. This sweep can be easily trimmed to fit your door. Color: Clear Length: 35 in Glass Thickness: 3/16 in and 1/4"