all-natural rubber formula is designed for determined chewers

Fits Dogtra and Educator collars

Made from Stainless Steel

Excellent for prey building

EZ-900 Easy Educator 1/2 Mile Remote Trainer System Configuration:EZ-900 (1 Dog System) all-natural rubber formula is designed1 2 mile range Stimulation levels 1 to 100 Expandable up to 4 dogs Uses RX 090 receivers Shock proof and water proof E Collars may ship separately [split] The EZ 900 Easy Educator employs proprietary "blunt" stimulation making it the most humane and effective e collar trainer available. Assembled in the USA, E Collar technologies systems are completely modular. The EZ 900 Easy Educator from E Collar Technologies is a modern, expandable remote trainer