1、NYLON PLASTIC MATERIAL: These cable snap bushings are made of excellent nylon and plastic materials, with smoothly edges, wear resistant, corrosion resistant, not easy to break, not easy to fade, sturdy, reliable, stable, and durable, and can be used for a long time. 2、EASY TO INSTALL: The circular buckle grommet is easy and fast to install. Simply use force to insert the black buckle sleeve into the installation hole, and the cable hose sleeve will not fall off after installation. 3、EASY TO STORE: All parts are stored in a transparent sturdy storage box with compartments. The cables are stored separately through the core, well organized, and easy to carry and find. It will not be confused during transportation and is convenient to use. 4、WIDELY USED: Used to absorb and suppress vibrations, and to insulate cables, pipelines, hoses, or shafts with limited internal clearances. Widely used in railway electrification, fixed cable, cable insulation protection, power grid wire insulation protection, protection cable, wire, etc. 5、160PCS: There are 160 pieces cable grommet protectors in the package in 6 different sizes, 8mm, 10mm, 11mm, 16mm, 19mm, 25mm. Use at will to meet your different sizes.