⭐︎ Thank you for viewing! ⭐︎ This cap liner is a great help for preventing yellowing on shirts and hats during this time of year!! ⭐︎ It's easy to attach, prevents sweat stains and sebum stains, and is disposable, so no cleaning is required! ⭐︎ Have you experienced any of these? "Yellowing doesn't come out even after washing" "Hand washing is troublesome" "I threw it away because it was dirty even though I could still wear it" By using this, you can avoid the hassle and avoid having to replace your shirts and hats. ⭐︎ This is a set of 20 pieces, 10 white and 10 black. ⭐︎ Size: 23.5cm x 3.8cm Thickness: 1mm 【Attention ⚠️】 • Due to being an overseas product, there may be some bending or odor. There is no problem with use, but please refrain from purchasing if you are sensitive to this. • Please double-check the registered address before purchasing the product.