Feature: WHAT YOU WILL GETYou will receive 1pair clamp, 1pair rail, 2pcs space and 4pcs flat head screw, complete accessories, ideal for storing your keyboard. The clamping range of the clip is about 1-5cm/0.39-1.97inch. STURDY MATERIALKeyboard organizer clamp and rail accessories are made of cold rolled steel, wear-resistant, sturdy and durable. Thickened material, its bearing capacity is strong and more stable. UNDER THE DESKClamp the clamp on the desktop, the rail is located under the desk, and the keyboard rail can be pulled out 20cm away from the edge of the desk, effectively keeping the distance between you and the computer monitor and protecting your eyes. WRIST PROTECTIONWhen using the keyboard rail bracket, your wrist is naturally relaxed, avoiding bending, effectively avoiding wrist soreness, relieving hand fatigue, and more comfortable to operate. EASY TO INSTALLPackage includes spacers and screws, you only need to assemble the clamp and rail, and then clamp it on the desktop, no need to punch, no damage to the desktop, easy installation. Specifications: Color: Black Material: Cold rolled steel Clamp clamping range: About 1-5cm/0.39-1.97inch Clamp size: About 8.2 x 6.3 x 4.8 x 9cm/3.23 x 2.48 x 1.89 x 3.54inch(lower height x topper height x width x screw rod length) Rail size: About 40 x 3.4 x 2.5cm/15.75 x 1.34 x 0.98inch(length x width x hole spacing) Spacer size: About 3.5 x 0.2cm/1.38 x 0.08inch(diameter x thickness) Package Includes: 1pair x Clamp 1pair x Rail 2pcs x Spacer 4pcs x Flat head screw Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement. 3. Keyboard tray is not included.