The Martingale Collar is ideal for escape artist dogs or those prone to pulling. Its adjustable design gently tightens when the dog pulls on the leash, preventing it from being removed without causing discomfort. Safety, control, and style in one accessory. Materials The Mauve fabric is made with micro-corduroy that combines polyester, polyamide, and elastane, achieving a velvety, elastic, and durable texture with an elegant and comfortable finish. With stainless steel hardware and buckles and reinforced stitching to withstand tension without deforming.