These shakers are 4cm each & are 1/4 thick so they are not uncomfortable to use. Because of this please keep in mind that the bits that you can add must be a little under 1'8 of an inch! I will be releasing a deeper shaker of this in the future if you would like to add larger bits ^^ The mold allows you to work on four at a time so you don’t have to worry about only making one a day :) Please remember: -all molds are made to order unless stated! If I receive a large quantity of orders, it may take longer for me to create your package. -I try to make all my molds as high of quality as I am able so that you have fun creating some cute crafts! -Shipping does not indicate when your package will deliver. Please be sure to check the tracking number after I shipped the item so that you may receive an approximate time when your package will deliver. -Applying an excessive amount of heat on your mold may damage it. -I am not responsible for any problems that may happen after I shipped the item. I try to package as best as I can, but once it’s out of my hands, I have no say what usps does with the parcel. If the item is damaged during shipping, please message me before leaving a negative review! I will try my best to remedy the situation Phone Grip/Charm Shaker Mold Palette