Keep track of the score of both teams - "we" and "them".
The 2 sliding wheels turn from 1 to 15.
(in the old days, finals at times went up to 15)
Leather, with steel screws.
Size 3 1/2", so it easily fits in a breast pocket.
If you order only small accessories we can usually ship in a small Priority Mail box at $7.15, or even in a padded envelop at $4.95. Pick the "Priority Mail" option during checkout and we will adjust the cost before charging your card or Paypal.