TF-104 can expand into 3 kayak rack (additional cradle arm needed, purchase separately). TF-104 weight capacity of 90 lbs for top cradle and 120 lbs for bottom base cradle, this rack is designed for newer and larger fishing boat and SUP and with limited of space needed it is perfect for home storage and store display. TF-104 features a tools-free assembly method for fast assembly. Made of tubular steel and powder coated in Pebble Silver, this product can be used indoors or outdoors. Top rack with flat surface for SUP as well as kayaks. Put them on the bottom rack on their sides and you can easily fit 2 or even 3 board on this system. A tightening key is included.