Get all the same great features of the original 4.5" SeaSucker, now with the addition of a sturdy stainless steel D-ring for securing ropes, straps, and more. Our vacuum cups are incredibly versatile, making them perfect for endless applications. When you need to attach something to a hard, non-porous surface without damaging it, there's no better option than SeaSucker's vacuum mount. It's a reliable and long-lasting solution for temporary mounting needs. Use it for any DIY project on your boat, home, RV, and beyond. Easily attach it by removing the housing and bolting it through the slotted holes, or screwing directly into the 1/4-20 threaded stainless insert.