a28cd882_pes_And_Sizes___Sewing_Insight__Description
[Needle Type] Upholstery [Use] Tufting; working with thick upholstery fabric; tying off quilts. [Description] 
Thick curved or straight needles. Curved upholstery needles are used when working with a straight needle is awkward. Straight upholstery needles can be from 3 to 12 inches long. Curved upholstery needles vary in length from 1 ½ to 6 inches.
Sewing Needles Types And Sizes | Sewing Insight
Description