The Brother PRVMFM Single Flash Frame M Clamp Magnetic Hoop helps you hoop in a jiffy thanks to four magnets that quickly fit snuggly into place. Being able to hoop projects while the hoop is attached to the machine means there s no need to remove the hoop from the driver/hoop holder when you want to insert your next project. You can also switch sizes easily, alternating between the 4 x 4 and 5 x 7 hoops without changing the driver/hoop holder. Smooth hooping magnets allow for easy fabric placement and adjustment without using excessive force. Simply put two magnets on and slide on the other magnets to smooth out your fabric! Durable magnets are strong enough to hold thick items in place like a lush towel yet avoid hoop burn. And because the magnets only fit where they re supposed to go, there s no chance of misplacing your them when hooping! Use it with the following Brother models: PR680W, PR1055X, PR670E, PR1050X, PR655, PR1000.