Your internet browser is not using current security protocols.
This will soon affect your ability to use the ISA website.
To update your security protocols, turn on TLS 1.2 in Advanced settings or contact your system administrator.
ISA Logo
About ISA  •  Find an Arborist  •  Newsroom  •  Job Bank  •  Contact Us  •  LOGIN
Join ISA
ArborPod

Subscribe to this podcast.

Climbing and Rigging

Blocking with a Speedline

Rip Tompkins demonstrates blocking out a piece of stem using a speedline to carry the piece over obstacles directly below.

 Released Audio File 
August 26, 2016 Download

©International Society of Arboriculture 2009-2017
PO Box 3129 • Champaign, IL 61826, USA • +1.217.355.9411

Email comments and questions to ISA
Monday, November 20, 2017 8:44:54 PM (CST/ISA Headquarters Time)
Please click here to view our privacy policy.