This replacement Cuff with a D-ring will work for any SINGLE TUBE Blood Pressure Monitor, but DOES NOT include any tip on the end of the tubing. Please note that color may vary. This unit is suitable for replacing a cuff that either has a bladder or tubing leak or the velcro is no longer holding during cuff inflation. The D ring helps assist with proper cuff placement by one person. If your monitor is indicating that you have a leak, please note that the leak can be in the bladder (inside part) of your cuff, the tubing or at the connection of where the tubing fitting plugs into the monitor. This new cuff and tubing will not solve the problem of a leak at the connection to the monitor. In that situation, you will need to replace the monitor. You can test for a leak location by air leakage sound or by using liquid soap and looking for bubbles. Fits Arms 32″ to 44″ in circumference. You need to have your original monitor’s plastic fitting (tip) that connects the cuff’s tubing to the monitor. Note if the connector does not fit in your machine: Pull/remove the connector/plug from your BP machine cuff which connects to the machine and fix in this new large cuff