Careful dimensions: with a length of 18 mm and a shortage of 12 mm, these needles are the perfect size for different leather thicknesses. Use the long needle for 6-12 mm thick leather and the short needle for leather with a thickness of less than 6 mm. Their suitable dimensions ensure precise seams for a flawless. PACKAGE INCLUDES The set includes 14 pieces leather positioning needles, including 7 long and 7 short needles, you have enough for your daily crafts. These heavy duty tools are specially designed for efficient sewing on various leather projects. USER FRIENDLY TOOLS These seam positioning needles are carefully designed for ease of use. Simply pull the base outwards to remove or insert the retaining pin. Avoid pulling out the needle by force to prevent the solder connection between ring and pin from loosening. QUALITY CONSTRUCTION These leather locking pins are made of high quality brass and stainless steel, providing lasting durability and reliability. These precision needles are not prone to fading and can withstand repeated use. So you get excellent value for money. Versatile Applications These leather sewing tools are suitable for different types of handmade leather crafts. They help securely fix the seams of stitched leather projects. They make a perfect gift for the craft enthusiast in your life and allow you to spend precious time on creative endeavors.