Pack of 10: Replacement straps for anti-snoring appliance. Available in 4 Strengths: Color-coded for easy identification: White (Soft and very flexible), Yellow (Medium), Blue (Firm), and Clear (Very firm). If you're feeling discomfort in the jaw, switch to a softer strap. For straps that stretch out too quickly, upgrade to a firmer option. Multiple Length Options: Choose from 9 different lengths: 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, or 21mm. Shorter straps advance the mandible further. Be sure to replace straps when the holes become oval-shaped or if the strap is 1/8 inch longer than a new one. Latex-Free and Adjustable: Made with 100% latex-free material, these elastic straps offer precise adjustments in one-millimeter increments, ensuring a comfortable fit. They can be easily replaced, allowing for smooth lateral movement. Easy to Attach: Simply moisten the elastic straps in warm (not boiling) water for easier attachment to appliances.