The metal screw offers reliable tightening force, secure the fabric firmly in the hoop, preventing slippage during embroidery. The come in different sizes for various stitching techniques. The threader helps you thread quickly. Offer embroidery fabric, you don't need to order it separately The embroidery hoops are crafted from quality natural bamboo and metal, smooth with no burrs, ensuring durability for long-term use. The embroidery fabrics are of cotton, providing an ideal canvas for your stitching art Separate the inner and outer frames of the round, place fabric between them, use metal screws to tighten until the fabric is taut. Select the suitable, use the threader to thread the, then can start embroidery creation Circle ring frame perfect for a wide range of embroidery activities: embroidery, cross stitch and more. It's an excellent choice for DIY enthusiasts, embroidery beginners to practice and create. Can works as wall decor or party decor This embroidery kit comes with 4pcs embroidery hoops, 4pcs blank embroidery fabrics, 2pcs metal screw, 16pcs embroidery,2pcs threader (random color). This complete set to fully support your embroidery projects, meeting daily use and creative Color: As Shown Material: Metal+Wood Package Contents: 1*set four inch embroidery hoop