SIZING - The xl size measures 33.5" x 9.5" and is appropriate for dogs weighing 70-100 poundsThe Large size measures 29.5" x 8" and is appropriate for dogs weighing 40-70 pounds.The M size measures 25.5" x 6.75" and is appropriate for dogs weighing 20-40 pounds.The S size measures 25" x 5" and is appropriate for dogs weighing 20 pounds or less END BACK PAIN - Stop bending over to lift your dog off of the ground. Our sling allows you to give your dog a lift without bending over. STRONG AND DURABLE - Our sling is heavy duty and made to hold the weight of any breed ADJUSTABLE LENGTH STRAPS - Unlike our competitors, our sling has adjustable length straps. No more bending over! EASY TO USE - Simply slip the sling under your dog's midsection and lift up to give your pup a hand The Labradog Co. canine sling is exactly what you need to give your dog some help without sacrificing your back. Simply slip the sling under your dog's midsection and lift up on adjustable length straps. Help your dog into the car or onto the couch without having to bend over and strain your back.