7.8 inch/20pcs and 12 inch/20pcs.Different heights are combined in the aquarium, which is more three-dimensional.The product uses gypsum/polyethylene/plastic/environment-friendly pigment with stable properties. Under normal circumstances, there will be no discoloration.Because it's a brand new product and is shipped sealed in small boxes.So there will be a slight smell. Thanks for your understanding. After washing and ventilating with warm water, the smell will disappear in a short time,Compressed and curled up the leaves will stretch out.Material:plasticcolour:greenPackage Contents:40 x fish tank simulation aquatic plants (20pcs20cm,20pcs30cm)Only the above package content, other products are not included.Note: Light 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.