Material: made from lightweight quality foam, covered with green Plastic hair. It's lightweight foam material inside, it would NOT sink into water. Great for Decoration: beautiful bright green fuzzy moss rocks feel real and cute, fill moss covered stone into a bowl, vase, glass cylinder, or decorative tray to create a feeling of nature Applications: Add to potted plants, dioramas, class projects, and woodland displays. Excellent for topiaries, wreaths, dollhouse miniatures, fairy gardens, and terrariums. Green moss balls, fake moss decor for floral arrangements, fairy gardens and crafting. Specifications: Colour:Green Material:Foam + Plastic Hair Size: Small stone size: about 3 x 5 cm/1.18 x 1.97 inch Middle stone size: about 5 x 6 cm/ 1.8 x 2.36 inch Big stone size: about 7 x 9 cm/ 2.79 x 3.54 inch Package Contents: 30 x Artificial moss rocks Note: It's lightweight foam material inside, it would NOT sink into water. Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.