A ball, a mold, an amulet or tefillin which were torn [after becoming impure]: one that touches them becomes impure, but one that touches what is inside them remains pure. A saddle which was torn: one that touches its contents becomes impure, because the stitching joins them.

The following are susceptible to impurity as objects that are fit for riding upon: an Ashkelonian saddle, a Medean saddle, a camel's cushion, and a horse-cloth. Rabbi Yose says: a horse-cloth is susceptible to impurity as a seat, since people stand on it in the arena. But a saddle of a camel is susceptible to [sitting] impurity.

What is the practical difference between [the uncleanness of an object used for] riding upon and [one used for] sitting upon? [An object] ridden upon has a distinction between contact with it and carrying it, but in the case of [an object that is] sat upon, there is no difference between contact with it and carrying it. The pack-frame of a donkey on which he sat is pure, but if he changed the size of the spaces or if they have been broken one into another, it is susceptible to impurity.

The bier, the mattress and the pillow of a corpse are susceptible to midras uncleanness [transmitted by sitting or lying]. A bridal chair, a birthing stool, and a launderer's stool on which he piles the clothes: Rabbi Yose says: they are not regarded as a seat.

A fishing net is susceptible to uncleanness on account of its bag. Nets, snares, bird-traps, slings and fishermen's skeins are susceptible to impurity. A fish-trap, a bird-basket and a bird-cage are not susceptible to impurity.