This is a storage case for large format lenses. It's made of paulownia wood, I think? The material is unknown, but it's wrapped in a soft suede. Because of this, it's lightweight and won't scratch other equipment when placed in a bag. The heights are 10cm, 9cm, and 7cm. The 7cm one fits standard size lenses like a 150mm, while the deeper ones fit larger lenses like a 65mm f5.6. It's the size of a Linhof board box. As a bonus, I'll include a Linhof genuine? case, about 10cm square.