Description: Material: These Protection Caps are made of high quality plastic insulation material, prevent outdoor poles from lightening conduction, very safe to use Function: Hold down the canopy, prevent it from falling off the top thimble, jacking up the canopy, can resist the middle of the awning to prevent collapse, Prolong the service life of the. Dimensions: The diameter of base is 3cm, and the height is 4.5cm, simple and practical to install, one handed operation Applications: Universal Fixing the tent, canopy, awning, extension awning lifespan Occasions:This Insulation proof Caps is perfect for outdoor camping, hiking, patio tent canopy using Specification: Material: Plastic Height 4.5cm/1.77inch Base Diameter 3cm/1.18cm Package Includes: 4 Pieces Insulation Protection Caps Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!