Gardner Bender 45-812UVB Flex Strap Cable Tie, 12 Inch., 20-50 lbs. Tensile Strength, Reusable / Flexible / Wire / Cord Management Industrial and Household Use, Nylon Zip Tie, 12 Pk., UV Resistant Black 12 inch long strap with finger grips on end and tail - re-usable - thread the tail backward through the last slot used, and pull to release the strap Malleable material will stretch up to 300 percent - Thread 2 slots for a stronger hold on bundle Interlinkable - thread multiple straps together for greater lengths Multiple bundles from one strap! Pull tail thru slot near finger grip and tighten, cut one slot away from loop and repeat with remaining strap. Minimum bundle diameter - 1/4 inch and Maximum bundle diameter - 3-1/4 inch