The P.A.L. Pop-And-Lock accessory rail lets you customize your cook space with an array of attachments that you can arrange however you want Offers extra room for prepping, resting meat, & more Detachable front shelf that can be custom-placed on your grill Folds down for easy storage when not in use Compatible only with the following Traeger grills featuring P.A.L Pop-And-Lock Accessory Rail (Ironwood, Ironwood XL, Timberline, Timberline XL) (Not compatible with Traeger Woodridge Series) Some assembly required to secure brackets Cold-rolled steel with high-temperature-resistant powder coating