Smartphone Finger Sleeves Conductive Fiber Red Edge Black - Set of 10 These finger sleeves are for use on touch panels of smartphones, iPhones, iPads, tablets, self-checkout registers, etc. As shown in the photo, the color is black with a red edge, and it's a set of 10. The conductive fiber is made of a polyester-like fabric, similar to that used in work clothes, and is characterized by its smooth glide and ease of swiping. They are stretchy, and I can use them from my pinky to my thumb, even though my fingers are a bit thick. They can be used by both men and women, and are machine washable. ★ 2 sets (20 pieces) are 500 yen, and 3 sets (30 pieces) are 666 yen. If you want to purchase multiple sets, please let me know in the comments. ★ Sets with other 300 yen items, such as conductive fiber touch pens and earplugs, are also available at 2 sets for 500 yen and 3 sets for 666 yen. If you wish to purchase a set, please select the items and request a "bulk purchase" or consult with me in the comments. Thank you. These are recommended for people whose fingertips have become less responsive to touch panels due to reduced moisture from aging or chemotherapy, or for those whose fingertips are too moist and make swiping difficult. They are also recommended for the elderly, gamers, and those who want to protect their fingertips. For those whose fingertips have become hardened from overuse of smartphones, applying urea cream to the fingertips, putting on rubber finger sleeves, and then wearing these conductive fiber finger sleeves will help restore soft fingertips. The sensitivity is good, and I think it's the same as the fingers of healthy young people.