Camp Crystal Lake Wall Decal Decoration Includes a two pack of decals: a haunted forest with trees in silhouette and Camp Crystal Lake. The scary forest room roll measures approximately 25 feet long by 4 feet high. The Camp Crystal Lake at night room roll measures approximately 25 feet long by 4 feet high. Unroll and attach to a room&#039;s walls for a surreally scary Friday the 13th decorative effect. We recommend using some sticky tack adhesive (not included) to hang this roll on your wall.