1. Powerful function: Adopts an open inner and outer ring structure and fastened with bolts. Smooth surface, torsion-resistant and pressure-resistant, tightly locked and large adjustment range. Provides an excellent seal with a variety of hose materials, effectively solves the problem of liquid and gas leakage of the hose.2. HIGH-END MATERIAL: 4 inch Hose clamps stainless steel made of stainless steel, constructed to resist scaling and corrosion and ensure long- term use.3. AMAZING FUNCTION: These dryer vent clamp are used to lock the hose tightly with a view to preventing flow leakage. This hose clamp assortment kit can be applied for securing hose, cable, pipe, tube, fuel lines in domestic applications, automotive, boat, industrial and so on.4. EASY TO USE: Can be simply loosened or tightened by using the adjustable handle without any other tools.5. HUGE QUANTILY, SMALL COST: Each package consists of 20 pack 4-inch hose clamp (Easy Turn Clamp), the size of each clamp is about 4 inch (DIAMETER)