A set of two "O" rings sized specifically for the Book Charkha that we carry from India. Please note:

• The thicker O ring is a main belt to be used between the main wheel and the speed wheel.
• The thinner & longer O ring is the speed wheel belt to be used between the speed wheel and the spindle.
• Made from strong rubber.

The band color may be different than the original bands and from the image shown. These bands are only sized to fit the Book Charkha that we carry from India; they may not fit other Charkhas, even the other models we carry.