Poolmaster 21228 3-Piece 21' Telescopic Pole w/ External-Locking Cam  - Premier Collection For use with most standard pool / spa maintenance tools Black anodized Aluminum in .8mm thickness Smooth finish External-locking cam Durable ABS cam sleeves and handle with hang hole 1" x 1-1/8" x 1-1/4" diameter pole - Extends to 20-1/2' / Collapses to 8' 9"