Package Size: You will receive 24 pieces of plastic clear baseball cap insert shapers and the book cover is 4.29inch/109mm wide 12.09inch/307mm long 0.3mm thick and the small hole on the hat insert shaper is 36x19mm. Please check the product size carefully before your purchase. Quality Material: Our hat insert shapers are made of quality plastic material. The hat insert shapers are reusable flexible bendable durable practical with light weight. The clear baseball cap insert shapers have great workmanship and you can use them for a long time. Unique Design: Our baseball cap insert shapers have irregular shape and the design is convenient for you to place them in your hats. The oval holes design on the hat is a ventilation setting to prevent the inside from getting too hot. And it is light weight which will not make your hat heavier and can help you maintain the shape of hat. Space-Saving: Our plastic clear baseball cap insert shapers are in small volume and in light weight which can be vertical stacked of multiple. They can help you organize closets or retail inventory efficiently. Wide Application: Our product is suitable for hat storage retail displays or travel becuase they can keep the cpas wrinkle free in closet suitcase or store shelves. They can help you fix the shape of the hat and show your hats well.