TL;DR: The Acorn Calm Paws Behavioural Support E-Collar is a training aid that delivers gentle stimulation to reinforce verbal cues during behaviour modification sessions. Adjustable and available in three sizes, it suits dogs of different builds working through structured training with an owner or qualified trainer. Behaviour training works best with consistent, timely feedback. The Calm Paws E-Collar pairs owner-led verbal cues with a gentle stimulation signal to help dogs stay focused during sessions. If you want to buy collars and co training tools rather than everyday walking gear, note that this is a training-focused e-collar — intended to complement, not replace, a structured training plan. Key features Gentle stimulation to support training cues and behaviour modification Adjustable strap for a secure, comfortable fit Helps reinforce positive habits during practice sessions Supports focus and responsiveness in working dogs Available in Small, Medium, and Large Specifications Attribute Value Brand Acorn Product type Training collar (e-collar) Sizes Small, Medium, Large Intended use Behavioural training for dogs Who is it for? This collar suits dog owners who are actively working on behaviour modification and want a training aid to reinforce verbal cues. It's appropriate for dogs undergoing structured training with an owner or trainer experienced in using stimulation-based tools responsibly. When you buy collars online, this model sits in the training-tool category rather than the everyday-wear group. For everyday walking, many owners pair it with a flat option like the Loyal - Adjustable Nylon Dog Collar. For post-surgery recovery — a separate use case — see the E Collar (10 cm) or the smaller E Collar (7.5 cm). What size should I choose? Three sizes are offered — Small, Medium, and Large — so you can match the collar to your dog's neck. Measure around the base of the neck where a collar naturally sits, then choose the size that allows two fingers of space under the strap. Feeding & use Fit the collar snugly but not tight, with room for two fingers between the strap and your dog's neck. Introduce it gradually: let your dog wear it unpowered for short periods first, then begin using the stimulation feature at the lowest effective level alongside a known cue, rewarding correct responses. Limit continuous wear to a few hours at a time and reposition the collar periodically to prevent pressure on one spot. If you're new to e-collar training, consider working with a qualified professional to build a clear cue-and-reward structure. Whether you buy collars for shirts elsewhere or a training collar here, matching the tool to the task matters. Available for same-day pickup at our North York, Toronto storefront, or ships Canada-wide.