ALL of the parts that you need to redo those broken scoring ring sand pads and missing rubber bumpers.  These are 98% exact replacement parts that include:

1) Three (3) vinyl scoring ring sand pads with exact sizes for each of the three (3) scoring rings that use the pads (30 pt, 40 pt, 50 pt).  Compare to other sand pad sets sold on various platforms that are all the same size for the three (3) scoring rings.  Those are not correct.  The original bags were 3 different sizes to fit the three different size pockets.  The vinyl and even the stitching pattern are virtually identical to the originals.  And these are made in the USA.

2) A full set of rectangular head steel tacks that hold the sand pads in position that are virtually identical to the original ones and easily go back into the same holes in your scoring field, if you carefully match the holes in your old sand pads to the new ones.

3) A full set of 4 scoring ring rubber bumpers with the correct metal washer insert for long life and durability.  These rounded top bumpers are positioned with 3 in the 10 ring and 1 in the 20 ring and serve to keep the ball from rolling back and forth inside the ring, speeding up the play.  Yours are probably long gone or so badly hardened and dry rotted that the exposed fasteners are doing damage to your wood balls.  These are near exact to the originals, unlike those sold elsewhere.

4) A full set of 4 of the correct original brass plated steel split rivets that are near exact replacements for the original rivets that are broken or missing from your lane.  The brass plated rivets match perfectly the brass plated fasteners that hold the rings to the metal angles that secure the rings to the scoring field.  So much better than a cotter pin or other jury-rigged fastener.

You are probably putting a great deal of time and energy into refurbishing your skee ball lane.
Why not use these near exact parts to put your lane in as-new condition?  The details will make your refurbished lane really come alive.

Thanks for looking.