HP Professional Glossy Inkjet Paper-50 sht/A4/210 x 297 mm. Package weight: 0.66 kg. Operating relative humidity range: 20 - 80 %, Operating temperature range (T-T): 15 - 35 °C, Storage relative humidity range: 5 - 90 %. Weight: 0.59 kg, Package dimensions (WxDxH): 232 x 14 x 316 mm