ALL METAL : The body is made of brass. It has excellent corrosion resistance and is suitable for precision woodworking work. you can own for clamping small wooden boxes, dollhouse miniatures, model railroad structures and rolling stock, ship models, model airplanes, clock kits, etc. Easy To Use: The Solid Bar Clamps Feature Knurled Set Screws, These Clamps Are Easy To Adjust To Your Desired Looseness, Perfect For Pressing Glued Wood Together. Wide Application: For Clamping Small Wooden Boxes, Toy House Miniatures, Model Train Structures And Rolling Stock, Model Boats, Model Airplanes, Clock Kits And More. Package inculded: ultra mini brass bar clamps .Maximum Clamping Size: 180 mm .Weight : 200g, Weight: 0.1984160358 pounds, Manufacturer: Chiloskit