Bear Motion for Nexus 9 - Premium Felt Sleeve Case for Nexus 9 Tablet Designed and made for Nexus 9 Great for organizing your potable electronics on the go. Soft yet durable for great protection A piece of leather string is tied to one button. You use it to fasten the front cover by tying the other end of the string to the other button. If you are tired of the leather string after a while, you can always change it to any yarn or flex fiber string that you can get in any craft store.