100% Silk pillowcases are comfortable for people to sleep with. you can fill any materials you like into the pillowcase. Silk square pillowcase are also can be used in guestroom as a kind of decoration. People can cover cushions with them. All the size, color, patterns, pillowcase materials are poduced according to customers' demands. Please contact me freely if you have any problems with it or you have any needs of the silk pillowcases.