Heavy Duty and Suit for: The Support Clamp is made of Strong Aluminum Alloy, secure compact construction design with Corrosion-resistant and Rust-proof, Steady and Durable for long last. Adjustable desk partition clamps are designed to mount onto any desk, counter or table. Thick range: (0.67"-2") or (1.7cm-5.1cm). Dimension: Clamp: (1.65x1.3x2.36)inch or (42x33x60)mm, 2.7oz or 75g C-shap Base: (2.05x2.05x3.62)inch or (52x52x92)mm, 7.8oz or 222g (Steady and strong, there are two non-slip rubber mats on table contacting surface for more stable and no desk-damged clamp). What You Received: Assembled set of 2 Pack Desktop Support Clamp details: C Clamp x2, Clamp Base x2, Screws(20mm) x2, Screws(25mm) x2, Screw Driver x1, Shield Clamp Mat x4, two type screws make clamp apply for (0.079" to 0.59") or (2mm-15mm) thick of Acrylic Panels, Plexiglass Shield. Simple Looking and Easy To Apply: These Support clamp have been Bead Blasted Finish, awesome looking without color fading worries. Easy to apply, come for convenient Install.