Multi-colour mix of irregularly shaped, molded glass tiles made from recycled float glass with a colour film bonded to the back. Smooth, rounded edges make them an excellent choice for children's projects (ages 3+ with appropriate supervision). No cutting required, but should you want to, wheeled nippers are the right tool. NOT UV-resistant. Suitable for indoor projects out of direct sunlight. Pieces vary in size from 10-25mm and are 3mm thick.100g = ±35 pieces 10mm - 25mm*3mm thick*Dimensions are approximate*Multi-colour mix of:+ 33% 10mm squares+ 33% 15mm squares+ 33% 12mm triangles*Colour applied to backside*Sealed against chipping*Frost-resistant*UVA-resistant in indirect sunlight*Fading may occur in direct sunlight*Recommended for indoor use only*Cut with wheeled nippers if desired