The plastic screen wicket is designed to be used on casement and awning (Project-Out) style window screens, and used to allow access to awning or casement operators where a screen is in place Dimensions are 10-1/8 inch x 6-1/8 inch for access to your window operator White plastic construction with locking latch, pull tab and top hinge (0.175 inch spline included for installation) May be screened with any type of screen fabric (Spline installation tool sold seperately) Please refer to the line art drawing for dimensions and compare with your original item before purchasing