Features: The plastic welding staples are made of high-quality materials, which are durable, have good hardness and toughness, and are easy to process. Usually used with a hot stapler to repair most plastic-holes and-stitch long cracks. The hot stapler plastic welder has a low melting point, good airtightness and fluidity, and can quickly and easily weld-cracked and damaged plastic parts, bringing back together nicely.The welding effect is smooth and perfect, and the hardness is higher than before. The bumper repair welding wire are suitable for large or curved cracks. Welding and repairing can be done conveniently and quickly by using a small heating device. Used for permanent repair of breaks, cracks and tears in rigid or flexible thermoplastic parts. It can be used for various plastic repair/nylon, PVC, ABS etc. High quality thermal stapler for plastic welding, auto bumper repair. Specifications: Material:Plastic Size: As Picture Shown 600 pieces respectively contain 6 kinds of welding nails, each with 100 pieces. Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 600x Welding Studs