The Rite-Way Magnetic clamp helps modelers overcome some of the more challenging aspects of building model structures. Parts are held in place at perfect 90° degree angles while enthusiasts tend to more enjoyable aspects of their hobby. All Rite-Way Clamps come in packs of 2pc Available in different sizes (Select from the menu) Clamps hold parts in place for easy application of adhesive Perfect alignment of parts at 90 degree angles. Magnets auto-adjust tool for varying material thicknesses. Clamps slide freely while still holding parts; no tool adjustment needed. Clear acrylic for clear visibility of parts. Compact design, available in several scales, ideal for use in compact model spaces. No large bases to hold structures needed; ideal for gluing tall buildings. Integrated access windows for easily applying adhesives. Simple material loading using stabilizer base. No "Twisting Action" unlike C-Clamps. Approximately 14 lbs of magnetic force.