Transparent acrylic observation box provides a clear viewing experience, allowing you to easily monitor fish condition. Compact and lightweight design makes it portable and easy to carry. Ideal for photographing aquarium fish while keeping them in water, featuring clear measurement scales for easy recording. Multi-functional use as a mini aquarium with lid, hatching box, fish isolation container, or temporary holding tank for small aquatic creatures such as daces, darters, and crabs. Also suitable for observing small terrestrial animals like spider crickets, snails, tarantulas, and geckos. A practical and thoughtful gift for fish enthusiasts, hobbyists, or beginners. Specification: Material: Acrylic Size: S: 22x4.2x8cm (8.66x1.65x3.15 inches) L: 25x4.4x9cm (9.84x1.73x3.54 inches) Package Includes: 1 x Small Fish Tank Note: Slight variations of 1-2cm may occur due to manual measurement.