The Aires Hobby Models website lists not only the Aires product line of resin replacement accessories, but also Quickboost, Wheelliant and Aerobonus. I have used products from all four lines and have never been disappointed. Collectively the product lines offer a broad choice of detail enhanced replacement parts for aircraft models in several scales.
The subject resin parts come in a sealed clear package with a small "instruction" enclosed therein. The instructions are limited to a profile of the parts with the portions of the resin to be removed shaded grey. The parts are surrounded on two sides by resin "legs" to protect the parts. I noted that the arrestor shaft had a small opening cast in the end where the hook was to be attached.