Recovering a pool table can indeed be a complex task, considering the variations in table designs. Selecting the correct rail cushions is an essential part of this process, as they come in different profile shapes. Choosing the right rail cushions ensures that the balls strike the rail at the appropriate height, typically around 1.43 inches.
 
In general, the K66 profile is commonly used for home and commercial 3-piece slate tables, while K55 rails are more prevalent in carom tables and most coin-operated tables. U23 rails are also utilized for certain home and commercial tables. To determine the specific rail cushions required for your table, you can measure the back side of the cushion where it is attached to the table, referred to as the "Dimensional Height." Additionally, measuring the top side of the rail, known as the "Angle Width," is recommended.
 
By comparing these measurements to the rail profile dimensions, you can determine the appropriate set of cushions for your table. The set of six table cushions you mentioned features a U-23 profile, specifically designed for tables that require this rail profile. This set includes enough cushion material to complete a standard 7-foot pool table.
 
During installation, it is important to adhere the cushion to the rail with the notched side against the rail. The top canvas part of the cushion should face upward from the table's surface. This installation orientation ensures a snug fit of the cloth when covering the entire rail, resulting in optimal performance.
 
Always take accurate measurements and consult professionals or experts if needed to ensure the proper selection and installation of rail cushions for your specific table.
 
Cushion Count:     6 Cushions
Total Length:     37"
Glue Side (to rail):     1 1/8" (28.575mm)
Canvas Side (up):     1" (25.4mm)