Universal angulr shower rail ø 25 thickness mm 0,6. it is advisable, for use at an angle, to use 240 cm shower curtains when the long wall measures 158 or 166 cm. it is recommended, for use at an angle, the use of 180 cm shower curtains when the long wall measures 86 cm. is recommended, the use of 240 cm shower curtains for use on a single wall