Note: When selecting a hard and fast position, Clamp the tube with pliers to fix the position. Specifications: Tension Test: 30 pounds Hanging twine length: 30M Hanging cord diameter:1MM D rings size: 15 x 25MM Screws size: 3 x 8 MM Package includes: 1 x 30 Meters placing wire 50 x Crimp tube 40 x Picture striking d rings forty x Screws