Keilim 16:2

Wicker baskets become susceptible to impurity once they have been trimmed and smoothed; those made of palm branches become susceptible even if they’re not smoothed on the inside because such baskets are kept that way. A hanging basket becomes susceptible to impurity once it has been trimmed and smoothed and its hanger is finished. A basket to hold jars or cups is susceptible even if it’s not smoothed on the inside because such baskets are kept that way.

Keilim 16:3

Small baskets and handbaskets become susceptible to impurity once they have been trimmed and smoothed; large baskets and hampers, as soon as two rows of wicker have been made around their widest parts. The reservoir of a sifter or a sieve and the tray of scales become susceptible to impurity once one row of wicker has been made around their sides; a storage basket once two rows have been made around its sides, and a basket of rushes once one row has been made around it.