This offer is 2 extenders good for 2 hats SnapbackUSA, Hat Size Extension / Adapter Snap in between your existing snapback type fasteners and adjust to size, as you normally would. No Stretching or Alterations needed. Made, Designed ( Patent Pending ), and Shipped from Madera Ca. Here's the nut's and bolts of this product. I'm the designer, maker, distributor. If you see it anywhere, it came from me. This design fits roughly 95% of the hats out there... it doesn't fit every single variation of hat, so Contact me and I will do my best to make things right. Cost... This is a specialized product and can be reused as needed.