Mighty Hoop 5.5" Happy - HoopMaster
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The inside dimension of this hoop is 5 5/16″ (5.30″, or 135mm)
Actual sewing area depends on brand of machine between to 4 5/16″ to 4 13/16″ (110 to 122mm)
HoopMaster products are non-returnable.
HoopMaster SKU: MH-HP360-55