Features: Brand new and high quality Craft from quality materials, these tent rings offer firm and reliability. Their night visibilities ensures easy navigations, make them a must having tool for outdoor camp enthusiasts. Suitable for campers of all height, these tent rings is designings to withstanding outdoor conditions. They safety fixed your tent, providing safety during outdoor activity. They provide added convenience and safety during night timing campings. Specifications: Materials: Silicones Color: As The Picture Shows Type: 50Pcs/100Pcs (Optionals) Inner Diameter: about.9.0mm/0.35in Outer Diameter: about.15mm/0.59in Package Includes: 2 Kind of Package(Optionals) Package 1: 50Pcs Ground Nails Fluorescent Rings Package 2: 100Pcs Ground Nails Fluorescent Rings note: Please allow 1-3mm error due to manual measurement. Please make sures you not mind before your bid. Due to the differences between different monitors, the picture may not reflect the actual colorful of the item. Thanks!