A simple-to-use slide rule device for calculating the third variable given the other two (distance covered, given speed and elapsed time)
$ 11.00
$ 0.00
Save: $
A simple-to-use slide rule device for calculating the third variable given the other two (distance covered, given speed and elapsed time)
$ 46.97
$ 61.06
Save: $
$ 14.99
Save: $
$ 99.95
$ 169.99
Save: $
$ 19.99
$ 36.99
Save: $
$ 29.99
$ 56.99
Save: $
$ 62.46
$ 81.20
Save: $
$ 95.00
Save: $
$ 17.99
Save: $
$ 29.99
$ 56.99
Save: $
$ 61.46
$ 79.90
Save: $
