Mighty Hoop 4.25" Smartstitch - HoopMaster
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The inside dimension of this hoop is 4 1/16″ (4.062″, or 103mm)
Actual sewing area depends on brand of machine approximately 3 1/4″ (3.27″ or 83mm)
HoopMaster products are non-returnable.
HoopMaster SKU: MH-SS-425