Handmade hand warmers. They are knitted with two strands of yarn, so I think you can use them warmly. They have thumb holes. These are handmade items by an amateur, so I make them carefully, but there may be some distortion or fraying. Please understand. -Size- When laid flat, Width: Approximately 9.5-10 cm Length: Approximately 6-7.5 cm Measurements are approximate. They are also stretchy, so please use them as a guide. When shipping, I will pack them so they don't get wet.