Features: -Type: C curved shape. -Material: Metal. - Color: Silver. The necessity for Curved Repair sewing needles is also known as Curved Mattress needles. They are used for general repair and are also great for sewing fabric boxes together and repairing lampshades. They are a necessity for every workbox, whether you are a general sewer or a crafter. Widely Used Curved Mattress Needles are extremely useful and widely used in the upholstery trades as well as across a range of craftwork. The length or full curved length of the needle is measured from the top of the needle, around the curve to the point. Ideal for Sewing into Difficult Areas These curved needles are ideal for sewing into difficult areas where a straight needle cannot go. They are great to use for all craft projects, fabric boxes, and upholstery repairs. They have a reasonable eye and a sharp point. Strong, Fashionable, Smooth Surface Weave needles are strong, fashionable, smooth surface, durable, and not easy to rust, helping to make wigs and hair extensions, exquisite sewing tools can be used to repair craft sewing items, leather, gloves, carpets, car seats, tents, awnings, etc. Many Advantages Good quality curved needles: made of metal, sturdy, and not easy to break.Well-polished surface: the metal material of curved sewing needles is polished enough to give a smooth stitch.Easy to handle: the needle eye is long enough, easy to thread yarn through even without a threader.