[Regarding] its wheel, when it is removable, it is not [considered] connected to [the bin], it is not measured together with [the bin], it does not protect [against tumah] together with [the bin] when [they] are an ohel over a corpse, and we may not drag it on the Sabbath when there is money inside it. But if [the wheel] is not removable, it is [considered] connected to [the bin], it is measured together with [the bin], it protects [against tumah] together with [the bin] when [they] are an ohel over a corpse, and we may drag it on the Sabbath even though there is money inside it. [Regarding] its cover, when it is [permanently] set, it is [considered] connected to [the bin], and it is measured together with [the bin]. But if it is not [permanently] set, it is not [considered] connected to [the bin], and it is not measured together with [the bin]. How is it measured? [By drawing] a diagonal line. R’ Yehudah says: If [the bin] cannot stand by itself, it is