Esselte Panorama Ring Binders in Blue. Format: A4. Ring diameter: 3 cm. Dimensions (WxDxH): 51 x 265 x 318 mm. This presentation binder features a blue, leather-style finish with a 4 cm spine, capable of holding 280 sheets (80 gsm). It includes two outside pockets for customization and a standard 4 D-ring mechanism for easy page turning. The cover is FSC certified, durable, and scratch-resistant. Dimensions (W x H x D): 51 x 319 x 266 mm. Weight: 410 g.