PACKAGE INCLUDED: You'll get 15 pieces magnetic zipper clips and 15 pieces nylon ties, enough for everyday use. Each magnet can withstand a maximum vertical pull of approximately 10 lbs. Please note that the pull force varies depending on the material and orientation of the contact . MATERIAL: Strong magnetic wire clips are made of rubber covered magnets, compact and small enough to attract ferromagnetic materials such as iron, nickel, etc. The zipper ties are made of nylon to good strength and long term use. REUSABLE TIES: Compared with traditional ties, our ties have the function of switch closure, if you want to release it after use, you just need to the switch to pull the rope out to liberate it, and you can utilize it repeatedly in different scenarios, so as to play the role of the best environmental protection. WIDE APPLICATIONS: Multi-purpose magnetic holders and zipper ties help keep your electronic wires, USB cables, computer cables and other light weight appliances neat and organized, can also be used as decorations for light items such as outdoor light strings and Christmas lights, secured to barbed wire, iron fences, shelves, and other smooth ferrous and surfaces that receive magnetic force. EASY TO USE: First fix the magnet base on the metal , insert the zipper tie to connect the wires, fixed if you want to move the position you can open the tie again, you can quickly adjust the position and angle according to your own needs, fast installation of the zip tie holder allows you to save more installation time. Color: Black Material: Plastic+Metal Package Contents: 15 pcs Magnetic Cable Zip Tie Base Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.