Rivet Pin Assortment for 1.2 mm Bracelet Repair - 21 mm to 30 mm contains 100 pieces stainless steel rivet pins ("T" pressure bars) with a diameter of 1.20 mm, the diameter of the head of the rivet is 1.80 mm. Sets contain 10 each bars with lengths: 67-46390-21, 22, 23, 24, 25, 26, 27, 28, 29 and 30 mm, supplied with matching rivets. Refills are available.