Material:Stainless Steel7 needle set. Different thickness and shape.For sewing leather, blankets, thicker fabric, canvas, tarpaulin, etcGreat for repairs to many items such as bags, baskets, sofa, furniture to namebut a few. Specification: Material: Stainless Steel Size Chart: Glove's needle:approx 50mmCarpet needle:approx 42mmSail needle: approx 56mmStraight upholstery needle:approx Sack needle:approx 75mmCurved mattress needle 1:approx 50mmCurved mattress needle 2:approx 75mm Package Includes: ASetof7HandRepairSewingNeedles Note: Since the size above is measured by hand, the size of the actual item you received could be slightly different from the size above. Meanwhile, please be reminded that due to lighting effects, monitor's brightness / contrast settings etc, there could be some slight differences in the color of the pictures and the actual item.