The Round Round Blue Mountain Royal is available in a Unibead 48" wall. A versatile Unibead construction allows you to replace an overlap or beaded liner with one of our beautiful tile patterns. Beaded pool liners are an excellent choice for replacement pool liners, but new pool owners can also appreciate their design and color options. Beaded pool liners snap into place thanks to a receiver that hangs over your above ground pool wall. Choose a liner that is both beautiful and strong.