You can depend on Sherlock, there's no need to worry about slipping or twisting. Adjust the length of the 4 - 8 ft. pole with just touch of the thumb. The green quick release position lock is made of durable, fiberglass reinforced nylon with a heavy duty brass locking pin. The lightweight fiberglass outer pole makes Sherlock easy to handle. It has a polyester fabric surface treatment for durability. The strong hexagonal inner pole, made of anodized aluminum, prevents twisting and locks in 6 inch increments. The soft handgrip gives comfortable, non slip support. The rugged, zinc die cast threaded tip holds the roller frame securely.