SUPERIOR QUALITY: Our zip ties are from industrial-strength, rigorously tested nylon, ensuring a strong and product. With high hardness, flame retardant and anti-aging properties, these ties appear tough and excellent overall fire resistance. Special Features: Equipped with a self-locking pressure adjustment mechanism, clear gear system, and screw holes, these cable ties can easily secure wires or wiring harnesses to the wall, providing you with convenient and worry-free use. Super removable zipper strap construction provides strength and durability to these ties, ensuring they 't break easily. UV : Thanks to their sturdy construction, our cable ties are to withstand extreme heat and cold, easily withstanding a variety of outdoor conditions. With a tensile strength of up to 50 pounds and an operating temperature range of -40 to +266.0 degrees Fahrenheit, these indoor or outdoor cable ties are versatile and resilient. BULK KIT: Our kit includes 300 screw holes for head ties, ensuring you have enough space for all your wire and cable organization needs. Not only do these ties help organize your wires, they also install quickly and safely, ultimately saving you a lot of time and effort. Versatility: Easily secure wire bundles or wraps to walls or other surfaces with our cable ties. Suitable for a variety of uses - from home to garden, electronics, construction, automotive, packaging and transport, these cable ties are a practical and functional solution to all your bundling needs. size: 4 x 150mm Material: plastic colour: black Package Contents: 300 x Mount Cable Ties 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.