Traditional 11/4" leather belts have secured our wristlets and anklets for over 130 years. They are offered in a variety of sizes and will work in conjunction with many styles of cuffs. Whether you are using the locking belts with L-300 locks for added security or non-locking with roller buckle for ease of use, you will find these belts are able to fulfill your needs. Universal K-300 key opens the L-300 locks.