Feature 1Sponge Material: This helmet pads is made of special sponge cushion, which is comfortable for long time wearing. 2Double Layer Design: Upper cushioning structure, bottom support structure. Make you feel soft and comfortable. 324 Little Hook And Loop Stickers: There are 24 hook and loop stickers delivered, which you can install the liner system as needed. 43 Piece Design: Made of 3 piece, easy to install and Remove. Washable and dry quickly. Easy wear and remove. 5Widely Used: The helmet series with special sponge cushion are used widely nearly in scooter, skateboard, cycling and sport helmets.SpecificationItem Type: Helmet padsMaterial: Memory spongeWeight: Approx. 152g / 5.4oz .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List3 x Inner Liner2 x Hook And Loop Sticker (Including 24 Small Hook And Loop Stickers)