These fingerless mittens are knit from 100% wool. Can be used indoor and outdoor. Suitable for girls and young ladies. Mittens slightly stretch for about 0.6" (2 cm). These mittens will fit most teen and adults with size M and L, but to be sure please carefully check measurements: * total length from top to bottom about 7" (18 cm) * from thumb to top 2" (5 cm) * from thumb to bottom 4.3" (11 cm) * thumb is about 1.3" (3.5 cm) long * about 3.4" (9 cm) wide