Durkee CF-BRNEW5X7SN Brother SACFSN5X7 Flat Hat Cap Frame Insert fits Inside SA439 EF75 5x7in Hoops for Single Needle NV1500-XP2, Babylock Machines
The bill of the cap is clamped securely in place while the embroiderer presses down the front portion of the cap held in place with sticky backing/stabilize