The Adjustable Traffic Delineator Post cones with a 1.9lb weighted base that provides stability . Unlike other posts, this one does not require water or sand filling to stay put, making it easy to move around and set up in different locations. [Eye-Catching Orange Color]: The bright orange color of the Parking Delineator Post makes it highly visible in any weather condition or lighting situation. Additionally, the post features 4 in reflective collars that reflect light and increase visibility, making it easy to see from a distance. white and 4FT red plastic chains can catch people's attention and take effect in warning people. [Adjustable Height]: The traffic barrier bar's height can be easily adjusted to fit any need, with a range of 19 inches to 34.5 inches. This feature makes it ideal for different types of traffic control situations, as well as for construction Lot, parking lot and auto exhibition.If this is your first time using Traffic Delineator Post cones, we have a manual to guide you through the installation process. [Durable Hard Plastic Material]: The Delineator Post cones with chain is made from durable hard plastic that is weather and water-resistant,like withstand rain or sunlight. This feature ensures that the post will last for a long time, even with heavy use in harsh environments. [Easy Assembly and Disassembly]: The post can be assembled and disassembled quickly and easily, without the need for any tools. This feature makes it easy to transport and store, as well as to connect multiple posts together using the included chain for added stability and visibility.