8.5-inch Oasis Ring Holder Ring Holder is 8.5-inches in Diameter x 1.5-inches in Width x 1.75-inches in Height with an inside Diameter of 6-inches Ring Holders are ready-to-use rings of Oasis Standard Floral Foam securely glued to a sturdy green plastic base Ideal for Advent wreath and holiday wreath making, as well as for creating centerpieces and smaller tribute pieces Encircle a bubble bowl with an elegant array of flowers for a spectacular display For use with fresh flowers. Soak in water before inserting flowers.