This combo package is only necessary if you have very thick walls, thick door jambs, and/or thick trim.
Measure First Before You Order
You need these only if the measurement from your door jamb (the ridge against which your door closes) to your outer trim is between 6 3/4″ and 8 3/4″ inches or from 17-22cm. The vise grips come in sets of two so ordering one of these items in your cart will result in 2 being delivered, one for each side of your Gorilla Gym core unit.
Walls that fall into the dimensions above will create a wider angle between the top horizontal plastic bar and the main bar, so the elongated curved bars are necessary to make sure the horizontal plastic bar is flush against your door trim.
If the distance is greater than 8 3/4″ (22cm), then the Gorilla Gym will not fit securely in that doorway at this time.