The ET-300 Mini Educator employs proprietary "blunt" stimulation making it the most humane and effective e-collar trainer available

Large fully inflated ball is approximately 7 inches in diameter

but larger and geared towards intermediate dogs

This tool is used by many top trainers to teach technical exercises to young dogs without the need for a helper

Available in 1/2"

Adjustable Nylon Slip Collar et-802 The ET-300 Mini Educator employsMade from high quality nylon rope Hand sewn and glued seem Plastic clamp for size adjustment Quick and easy on and off [split] Our Adjustable Nylon Slip Collar is made from high quality Nylon rope and is finished with hand sewn and glued seems. This collar makes an excellent training collar or backup for a prong collar. Offered in 4 sizes. The size listed for each collar is the maximum size the collar will adjust to. Every size has a sliding plastic