Features: brand new and high quality This is a high-quality balancer to quick release wing nut for many brand balancers. This quick nut is made of durable material that helps speed up the balance process, which quickly releases the thread, allowing it to slide in and discharge the position when pressing the release rod. The fast wing nut promotes the balance process through its fast release thread. When the release rod is pressed, the tool allows the wings thread to slide and out and release the position, which is very convenient to use. This product has four models, 36mmx3mm, 38mmx3mm, 40mmx3mm, 40mmx4mm, please purchase inappropriate according to your car nut model to prevent purchase. Specifications: Material: Metal Size: As Shown Type: 36mm/1.47in, 38mm/1.50in ,40x3mm/1.57x0.12in ,40x4mm/1.57x0.16in(optional) Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Hub Wing Nut