Extreme Dog Fence Replacement Containment and Training Collar Strap for Most Dog Fence Brands by Blue Bubble Heavy Duty - The Rugged, but Easy Release Buckle Ensures that Your Dog's Fence Collar Stays on His/Her Neck Until You are Ready to Remove it. The Sturdy 1" Thick Nylon Strap is Comfortable and Stylish on Your Pet's Neck Universal Fit - The Pre-Laser Cut Contact Point Holes Ensure a Perfect Fit with All Brands and Models of Dog Fence Collar Receiver (Invisible Fence , PetSafe , Perimeter Technologies , SportDOG , and More. See Product Description for List) Perfect Fit - This Strap is Adjustable to Fit Your Dog's Neck Perfectly. Simply Adjust the Sizing Gate Until You Find the Perfect Fit, Cut Off Excess Strap, and Heat the End to Prevent Fraying Another eXtreme Dog Fence Product that is Proudly Manufactured in the USA. Lifetime Warranty - If Your eXtreme Dog Fence Collar Strap Ever Fails You, Including from Chewing, You Can Call Us and We Will Replace it at No Cost to You. We Stand Behind Our Product and Value Our Loyal Customers