Helps Prevent Falling Or Sliding Our Of A Wheelchair - Great For Elderly Epileptic Or Those Patients With Loss Of Muscle Function Easily Attaches To Most Wheelchairs Or Transport Chairs Buckle Is Simple To Fasten And Releases Easily With The Push Of A Button Just Like A Vehicle Or Airplane Seatbelt Strong And Durable Belt Measures 1.9 Wide With An Adjustable Length From 35 To 53 Easy Mounting Instructions Included