Profile: Astro Nautics Co., Inc. specializes in marine dock fendering services. We offer dock edginging including dock bumper, dock corner and side wheels & boat fenders and bumpers. Our dock bumpers include straight, post and pier bumpers. We offer center line fenders, ANC, one-eye, monterey and astro ring fenders. Our center line fenders are inflatable, which are made of heavy duty marine grade vinyl and Astro fender, which is molded from marine grade vinyl which is seamless and single piece.