Notice Only the grey color Finger sleeve have the carry box inside Sweatproof and Anti-slippery Gives you Long-lasting Coolest Gaming Experience. Say goodbye to the moment when you lose the game because of Sweat Hands. The friction would change if your finger is too sweaty or dry then it would affect your gaming experience. Flydigi Finger Sleeve can stabilise the friction into a comfortable zone to help you aim where you want to aim. Flydigi is focusing on the four main features of finger sleeve. We invest a long time doing a lot of research about the finger sleeves on the market then find out the four keypoints to build the perfect finger sleeve. Can be worn on Both Thumbs and Forefingers Offer You Long-lasting Coolest Gaming Experience. Four Fingers to cooperate, full coverage of any operations.