The set is machine accessories. They are designed specifically for machine use. Easy to use and perform the same function as grommets with clean tool. Manufactured to tight tolerances, they will ensure a fit between your needle loop and armature bar. Features - Color: As shown. - Material: Rubber and Silicone. - Packing Size: About 15.2x10.7x3.2cm. - Designed specifically for machine use. - Rubber bands are used between needles and machines and can prevent the situation of flying needles. - pin pads are used for the replacement of regular needles. - The needle brush is used to clean the conventional nozzle. - Carefully designed, excellent for use. - Warm Tip: Dear buyer, due to lighting effect, monitor's brightness, manual measurement and etc, there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand Thank you