LOCK LACES™ provide stretch-fit comfort and locked-in safety for all sports and casual use. LOCK LACES™ are a necessity for runners and triathletes improving performance and transition times. LOCK LACES™ are one size fits all. LOCK LACES™ are 48” inches in length. LOCK LACES™ are elastic and stretch to 72” inches in length.Each Pack Contains: 1 pair of LOCK LACES™ (2 elastic laces, 2 cord locks, and 2 cord tip clips to protect laces ends from fraying).