Makes the anti-tension of these semi-throttle system very effective for certain educational techniques. All 'Premium' collection is made of nylon fabric extra thick double layer. This type of material is extremely robust and durable, at the same time soft and flexible. This range is the most extensive collections nylon Trixie. Includes up to seven colors of belts, branches (single layer or double), spacers, collars (single or double), semi chokes, harnesses (normal or padded with plush) and petrals (single or comfort). - Size SM (size from a Dachshund Cocker). - Thickness: 15 mm. - High quality Nylon. - Fully adjustable. - With anti stress system. - Adjustable Length: 30 to 40 cm. - Color: Black.