Recommended Dog Breeds:  Chihuahua, Pomeranian, Doberman, Poodle, Yorkshire Terrier, Miniature Pinscher,Beagles, Butterfly dog and other small dogs  Other large dogs( weighs > 13lb) are not suitable ! Measuring: STEP 1: Have dog stand on a piece of paper STEP 2: Lift dog's opposite paw so that the weight is placed firmly on the paw that is being measured STEP 3: Mark both sides of the widest part of the paw STEP 4: Measure the disatance,choose the correct size. [Size] [Your Dog's Paw Width] [Your Dog's Paw Length] [Sock's Length] S      <1.57 in      <1.57 in      1.77in M      <1.77in       <2.17n      2.17in L      <1.94in       <2.54in      2.36in Feature:  Flexible, skid-resistant and waterproof sturdy soles, well provide traction and offer serious paw protection in wet and dry, hot and cold conditions  This set of flexible pet boots will act as a good partner for them, protecting the paws against hurt from sidewalks,asphalt,grass etc. The sole of the waterproof durable dog boots is sturdy,flexible,skid-resistant and allows the boots to be used indoorsor outdoors,in wet and dry, hot and cold conditions. They are sturdy enough to withstand outside play, and protect your dog's paws from stones, dirt and mud.  Shoes are fastened firmly by straps, which are long and adjustable, capable to prevent slipping off and supply a customized tightness for secure closure  Kindly Attention: Though the soles are waterproof, the dog boots can not be applied in deep water orin sands, because there may be water or fine sand seepage through sewing needle holes Note:  To prevent the dog from biting off the tape,place the strap's tape junction towards the back of the dog's leg Package List:  4 x Dog Shoes