All rush mats are [capable of becoming] tamei [with] corpse tumah, [these are] the words of R' Dosa. But the Sages say: [Rush mats can contract tumas] midras. All braided threads are tahor, except for [those] of a braided belt, these are the words of R' Dosa. But the Sages say: All [braided threads] are capable of becoming tamei, except for those of the cord used by wool dealers.

A sling whose holder is [made of] woven [cloth] is [capable of becoming] tamei. But [if the holder is made] of leather, R' Dosa ben Horkinas rules it tahor, but the Sages rule it tamei. [If] its fingerhold splits, it is tahor. [But if] the part of the cord that the user holds [breaks, the sling retains its ability to become] tamei.