Heavy Duty: The width of our black heavy duty zip ties is 0.47 inch, while industry standard is 0.2 inch, wide and thick zip ties. Quality Ratchet Case: Our black heavy duty zip tie contains four teeth, while industry standard is two, provide up to 250 lb tensile strength, strong zip ties. Indoor or Outdoor Use: Our heavy duty cable ties can be used with applications for home, garden, organizing electrical cable ties and PC cable ties. Easy Storage: Our plastic ties heavy duty are stored in a resealable bag, makes storage ease and use convenience. size:about 300x7.5mm Material:nylon colour:Black Package Contents: 500 x 12 inch Heavy Duty Zip 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.