Feature 1MASTER TASK WITH EASE: This insert low profile impact socket adapter set is specifically designed for use in confined areas, allowing you to access hard to reach bolts and nuts with ease. 2UNIQUE MAGNETIC DESIGN: The included magnetic holding device keep the adapters securely attached to the sockets, enhancing convenience during your tasks. 3HIGH STRENGTH MATERIAL: Made from high strength, heat finished chrome vanadium steel, these adapters are built to withstand rigorous use, ensuring dependable results over time. 4STACKABLE ADAPTERS: The 4 adapters included in the set can be conveniently stacked together,minimizing storage requirements, giving you more convenience. 5SPECIFICATIONS DETAILS: Low profile socket adapter set contain 4pcs with different specifications of 1in M-3/4in F 3/4 in M-1/2in F 1/2in M-3/8in F 3/8in M-1/4in F.Item Type:LowProfileImpactSocketAdapterMaterial: MetalSize:1in M-3/4in F 3/4 in M-1/2in F 1/2in M-3/8in F 3/8in M-1/4in F .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 xLowProfileSocketAdapterSet(4PCS)