How the pole works with the head: When combined with the Inteletool telescopic pole, the tool head attaches and detaches and telescopic pole collapses for easy storage and transport. The Inteletool tool head (male) and the all fiberglass telescopic pole (female) both utilize the ACME thread in combination with a nylon collar lock on the pole to connect the tool heads to the telescopic pole for a secure, permanent feel. The Inteletool telescopic pole features a twist & lock innerlocking mechanism with an external nylon collar lock to prevent the pole from collapsing while in use. There are no predesignated stopping points for length. Can adjust to any desired length. Strongest telescopic pole on the market!