Sort, collate, organize papers with ease. Durable, flexible material has unique friction ridges. Tippis increase hand performance and reduce muscle stress. Latex- and Silicone- free. Breathable, sweat-free and comfortable for long-term use. Open top works well with long fingernails. Order ring size for best fit. Material(s): Thermoplastic Elastomers(TPE); Size Group: 5;Small; Open End Inside Diameter: 5/8".