Cosmos &reg; U Shape Nylon Round Tips Twist Lock Cable Tie, Pack of 50, 2 Size (Black) Package includes 50 pcs twist cable ties, 20 pcs small and 30 pcs large Simple design for tying cables Locks and opens by twisting the clips with fingers Ideal for keeping all kinds of cords cables well organized and tidy in place Size: 4 cm x 2.5 cm (large), 3 cm x 1.5 cm (small)