Made of sturdy nylon fabric, premium zinc alloy 360 swivel snap, anti-rust hook and stainless clip, Corooci 2 pack dog safety belts are not only strong enough to keep your pets staying safe in car seat, but also durable enough to protect them from sudden brake or sharp turn.It can be connect with dog harness and dog collar. It's not only a pet seatbelt but also a general leash. Corooci Dog Seat Belt Oustanding Features: ?1. Heavy duty nylon fabric and anti-rust hook clip to ensure durability. 2. Premium zinc alloy 360 swivel snap allow your pet to spin around with no tangle. ?3. Adjustable strap can be adjusted to fit small pets to large breed. The tangle-free nylon straps quickly and easily attaches to vehicle headrests. ?4. Not only can use for car ,but also can be converted to a traditional hand-held leash whenever you need. In addition,It is easy to have the pets secured to a tree or other strong post to keep pets safe when you need. Specification: Material: Nylon with the reflective lines Weight: 140g 5oz(1 piece) Package Contents: 2 x Adjustable dog Seat Belt. ( Black Black) Warm Tips: For your pet's safety, please do not attach the seat belt to your pet's collar directly. The seat belt is safe to be used with pet harness.Warm Tips : For your beloved pet's safety, please do not attach the seat belt to your pet's collar directly. Recommended to use the seat belt leash with pet harness than pet collar, to provide your pets a comfortable and secure wearing. Adjustable Length : This seat belt can be adjusted from 20 inches to 27 inches and can be stretched to 32 inches for the Max length. The circle can be adjusted from 16 inches to 24 inches,which suitable for different size and weight dogs. Well Made and Durable : The lockable quick release buckle of this seat belt is sturdy and the hardware is all metal while the straps are made of durable nylon. The reflective stitching design makes it great for night time use. Practicability Multifuntion : The pet car travel strap not only can be hanged on the headrest but also can hand-held leash whenever you need. In addition,It is easy to have the pets secured to a tree or other strong post to keep pets safe. Headrest Restraint Design : Dog seatbelts are designed with headrest restraint. It can be used in all models of Vehicle which has headrest.Adjust the pet seatbelt to the max length and grip the strap circle to use it as a general dog leash.