Design Ideas GelGems reusable polymer-gel window clings — press onto any clean glass or mirror, rearrange as you like, and rinse to reset stickiness. No adhesive, no residue. Each small bag is packed with motifs to fill a window panel. Available in Paper Airplanes and Comic Words designs. Bag size: 8 × 9.75 in. Reusable polymer gel — no adhesive, no residue Sticks to glass, mirrors, and glossy tile Rinse-clean to reset stickiness