28mm. These vintage clips were uncovered in pristine condition. They are signed "Barclay". We have some of the original hang tags as well. They are a gold plated metal and lucite with a faux pearl center. Very unusual!
If you are not delighted with your beads and beading supplies, we will gladly give you a store credit, exchange , or a refund within 30 days of purchase. Please see our shipping & returns page for the full details.