Crafare 6pc Wet Floral Foam Bricks Green Florist Styrofoam BlocksColor: 6pc Material: These wet floral blocks are made of soft fine styrofoam,easy to absorb water Easy to use: Cut the floral foam brick as any shape as you want, put it into water slightly and wait for one minute until it absorbed water fully. Applications: Ideal Styrofoam blocks for beautiful crafts and floral arrangements. it can not only hold your arrangement, but also accept and hold water to keep your fresh cut flowers and greens hydrated. It