Features: Being able effectively organize the cable on the desk, allowing them to through the desktops hole in tidying manner, making the work area more organized. It can simple the installation process of cable, save tediously operations, improve the efficiency of line layouts, and save time and energy. In addition to the threading function, it can also be used as wire storage sleeve to fix cable together, avoiding interlacing, confusion. Adopting a sleeve structure, it can adapt to cable of different size and protect the cable from wear and damage. Easily and fast to use, not additional tool required, just insert the cable into the conduits to completely the threading operation. Specifications: Material: Plastic Style: White one big and one smallness/White two big and two small/one big and one small Black /two big and two small Black Size: about 3.5x1.8x3.6cm/1.38x0.71x1.38inch Inner diameter: about 1.8cm/0.71inch Package Includes: 2/4pcs Plastic Desk Grommets note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.