The base unit (Chassis) holds the two pieces (bottom and top) of the clamping Window in place with just the twist of a knob!
Use Clamps for faster positioning without obstacles. SAPRB6 can clamp over heavy seams, velcro, zippers, and other elements that make it almost impossible to squeeze into a hoop. SAPRB6 holds products steady, and never leaves a hoop burn. Perfect for leather, lunch bags, fanny packs, canvas totes, garment bags, gym bags, and more.
Fits Brother Machine: Brother PR600, Brother PR600II, Brother PR620, Brother Entrepreneur® PR650, Brother Entrepreneur® PR650e, Brother Entrepreneur® PR655, Brother Entrepreneur® Pro PR1000, Brother Entrepreneur® Pro PR1000e
and BabyLock Machine: Baby Lock BMP6, Baby Lock Professional BMP8, Baby Lock Professional Plus BMP9, Baby Lock Endurance BND9, Baby Lock Endurance 2 BND9-2, Baby Lock Enterprise BNT10, Baby Lock Enterprise BNT10L
Includes 11" x 5" Window and 8" x 5" Window Set
Use Clamps when you want Faster Positioning Without Obstacles! Clamp over heavy seams, velcro, zippers, and other elements that make it almost impossible to squeeze into a hoop. Holds products steady, and never leaves a hoop burn. Perfect for leather, lunch bags, fanny packs, canvas totes, garment bags, gym bags, and more. - See more at: http://www.allbrands.com/products/29371-hooptech-sa599pr6115-chassis-base-unit-11x5-8x5-wi#sthash.pC37GDb9.dpuf