They are often used on high-speed highways and expressways.

Hiphen solutions services limited ,is a professional services organization registered in Nigeria ,provides a full range of professional services , business solutions and products.
WE CAN SUPPLY AND INSTALL IN ANYWHERE IN NIGERIA.
OFFICES IN LAGOS,ABUJA,PORT HARCOURT AND BENIN CITY.
Please call / Whatsapp:0703-514-6988,
0807-779-7562 ,08025897223
0818-116-0990 Email:info(AT)
hiphensolutions.com
web:www.hiphensolutions.com/products
We are Multi-Award Winning company in Technology Solutions, Access Control ,Safety , Security and Automation Systems.