Singing Rock Sr 16mm Express Qd 30cm/12 30. The new thinner width makes these slings easier to handle and lighter to carry. Express slings are sewn as quickdraw slings. Assorted eye catching colors. Specifications for Singing Rock 16mm Slings: Manufacturer: Singing Rock Length: 12 in Width: 16 mm Breaking Strength: 22 kN Features of Singing Rock 16mm Slings: Strength: 22kN Width: 16mm/0.6" CE and UIAA Certified Package Contents: Singing Rock 16mm Slings The Singing Rock 16mm Slings is a quality addition to the Singing Rock lineup. For more great deals on Runners & Slings by Singing Rock please browse our Singing Rock Climb page.