Disposable shoe covers wear rubber bands handmade to be how long?

Disposable shoe covers wear rubber bands handmade to be 35 centimeters. Shoe cover making steps:

1, prepare four pieces of cloth, cloth size 38 * 17 cm, 2 rubber bands (35 cm).

2, the two pieces of cloth with flower color part turned over and sewed along the dotted line part of the picture below.

3. Thread the rubber bands through the 1.5 centimeters you left out in the previous step.

4. Make the other one in the same way and turn it over to complete the shoe cover.