Description: 【Quality material】: This hat size extender is made of silicone material, which is wear resistant, sturdy, and resilient. It can be used repeatedly for a long time 【7 hole design】: The snapback strap features a 7 hole design that allows you to adjust the tightness of your baseball cap for a more comfortable fit 【Easy to use】: The baseball cap closure strap can be easily installed on the hat strap. Simply the holes with the hat buckle and press lightly to install it, making it user friendly 【Appropriate size】: This cowboy hat fastener extension measures 6.5 cm in length, 1.9 cm in width, and 0.7 cm in thickness. Its compact structure and lightweight make it easy to store and carry around 【Wide application】: This hat snap buckle is nice for adjusting the tightness of your baseball cap and is suitable for use with baseball caps, cowboy hats, etc., making it versatile in application Specification: Material: Silicone Size Chart: 6.5cmx1.9cmx0.7cm/2.56inchx0.75inchx0.28inch Package Includes: 1 Hat Size Extender(4 Pack) Note: Please allow slightly errors 1-2cm differences due to manual measurement.