Wis. Stat. § 811.16
The defendant may, at any time before judgment, deliver to the officer who attached the defendant's property a bond executed by 2 sureties, to the effect that they will, on demand, pay to the plaintiff the amount of the judgment, with all costs, that may be recovered against the defendant in the action, not exceeding the sum specified in the bond with interest. The bond shall be at least the amount claimed in the plaintiff's affidavit or, at the defendant's option, the value of the property attached, according to the appraisement; or, if real estate, in a sum fixed by the court or a judge, on notice. The sureties shall justify as provided in s. 811.06, and may be accepted if they are jointly responsible for the required sum.
Wis. Stat. § 811.16