HIGH ELASTICITY: Not easy to be crumbed, Without water they are able to be reused UNIQUE DESIGN: Add a capful of beads and 300ML water to a vase, just 3 hours growing, you will be amazing at this magic beads THE WATER BEADS OF 4OZ ARE SMALLER THAN 9OZ. (4 oz:dry 2-2.5mm hydrated 12-15mm) (9 oz : dry 2.5-3mm hydrated 15-20mm) MULTIPLE USE: Water Beads for wedding centerpieces, plant decoration, vase filler, home, and general decorations Non-fade, Non-Toxic, 100% Biodegradable, Non-Flammable