Product Feature: we use high quality coated stainless steel rope.the same material used in dog tie-outs.keep your dogs restrained in a car without worrying about chewing.our bull bull snap is easy to contact to any car latch bar and harness.These bars are designed for child car seats and are welded directly to your cars frame. Size estimate: 16 inches--Small Dogs -- 0-20 lbs 24 inches--Medium Dogs-- 20-40 lbs 31 Inches --Large Dogs-- 60-80 lbs 40 Inches-- X Large Dogs-- 80+ lbs PLEASE MEASURE from your dog's harness clip to the latch bar before ordering to ensure the right size is ordered. Service: If any inquiry or problem with our product,please contact us and we will offer a satisfying answer. Return and Exchange: We accept return or exchange for any reason ,so please feel safe to order. For more details, please contact us.

ATTACHES TO SAFETY LATCH BAR:with double bull snap leashes,our seat belt can attaches to dog harness and your car's latch bar instead of clipping into a regular seatbelt.in this way,it will be more convenient and safety.you can find these latch bar in the seat creases in your cars back seat. CHEW PROOF RESTRAINT:Our dog seat belt is made out of heavy duty plastic coated stainless steel rope, the same material used in dog tie-outs.it is indestructible and durable.