Using this Marshall Ferret Harness and Lead Combo is a breeze. First, adjust the straps to fit your ferret properly. Make sure it's snug but not too tight. To put it on, open the quick - snap buckles, place the harness around your ferret, and then snap the buckles shut. When you're out with your ferret, hold the lead gently. As for maintenance, clean the harness and lead regularly with a mild soap and water. Let them dry completely before using them again. Always double - check the adjustment of the harness each time you put it on your ferret to ensure it remains escape - proof.