These items are handmade so there is some variation in thickness. You can choose from the premade colorway or choose to have a custom keychain made. If you choose a custom keychain please fill in which card you would like and what colors you would like. Base color is the color of the keychain. Topper color is the color of mica powder we use on the details on top to make the design pop. Choose your colors from our color chart. If your options are too long for the custom field please send us an email with your custom choices after placing your order. Please allow 10-14 business days for all custom orders to ship so we have time to make them.