Metal Donation box great for secure donations Secure donation box with lock option Collection box Metal Charity Box with Side Lock is more heavy duty than tin donation boxes. This is the same metal used in safe boxes. Pre-slotted in the front side for coin drop donations, it is designed with a side lock feature to use with a padlock and keep your funds safe. Product Dimensions: 8"x6.1"x2.1" With top slot and front slot.