Excelsior Nest Box Pads for Hens provide comfort for your hens while providing a soft and clean substrate that cradles their eggs to help minimize rolling which can lead to cracks and breaks. Excelsior nest box pads help draw moisture down and away from the hen to help maintain a more sanitary nesting surface. The excelsior fibers are adhered to a paper backing that helps maintain its shape, so the pads are easily inserted and removed from nest boxes. Manufactured from Great Lakes aspen excelsior fibers and brown kraft paper. Excelsior fibers are made in the USA.