On all tables at the end of the cushion at the pocket opening there are reinforced ribber facings. Often these facings get a bit out of shape and need replacing when you replace the table cloth. If you want to make the size of your pockets a little smaller you can stack the facings on top of one another. These are sold in a set of 12 facings, enough to cover all rail ends for the 6 pockets.These are available in 3mm or 5mm thickness.