QALO Twist Stackable silicone rings provide a safe, comfortable, functional and extremely durable alternative to the traditional wedding ring Rings are meant to be worn stacked in sets of 2 or 3; show your individuality wherever life takes you Temperature tolerant from -75°F to 575°F, and non-conductive and non-porous Tensile Strength: Between 5.5-7 lbs. of force to break QALO rings fit true to size; half sizes should size up From the manufacturer Feature Mix and match with five colors and four styles for endless possibilities that fit your unique style Resistant to gasoline, oil and solvents Resistant to gasoline, oil and solvents Resistant to gasoline, oil and solvents Resistant to gasoline, oil and solvents Dimensions Height 1.95 mm, Width 3.5 mm Height 1.75 mm, Width 5.5 mm Height 1.5 mm, Width 5.5 mm Height 1.5 mm, Width 5.5 mm Height 9.5 mm, Width 3 mm Tensile Strength 5.5lbs of force to break 22lbs of force to break 22lbs of force to break 22lbs of force to break 12lbs of force to break Non-Conductive & Non-Porous ✓ ✓ ✓ ✓ ✓ Safe Alternative to Metal Wedding Bands ✓ ✓ ✓ ✓ ✓ Temperature tolerant from -75°F to 575°F - ✓ ✓ - -