T-REX Extreme Hold Mounting Tape is perfect for projects that require a little extra strength to complete. This double-sided tape can be used on multiple surfaces and each four-inch piece of tape can hold up to 4 lb. The tape is suitable for use in all types of weather. Use it for mounting indoor and outdoor dcor, mailboxes, house numbers, lights, and more. - T-Rex Extreme Hold Mounting Tape - Black, Pkg of 8.