Sickles are a form of Wizarding currency. They are worth more than Knuts, but less than Galleons. Sickles are made of silver. There are no Sickles on Pottermore, as all items are priced in Galleons.
From the Story[]
"Sickles are wizarding currency. There are twenty-nine bronze Knuts to a Sickle and seventeen silver Sickles to a golden Galleon."
See also[]
- Sickles on the Harry Potter Wiki