Perfectly suited for darkroom environments and photography labs, the HDPE construction protects unstable photographic from degradation caused by oxidation during extended storage periods Professional photographers and commercial darkroom operators rely on these lightproof bottles to securely store developer, fixer, and other photo processing with label ready surfaces for easy identification Engineered with a wide mouth, this darkroom accessory streamlines workflow efficiency while preserving the potency of photo development liquids for consistent print Featuring leak proof cap and 1L size, the opaque photography storage container maintains integrity while accommodating various processing needs in film development workflows Crafted from resistant HDPE with a light blocking black design, this 1L bottle ensures safe storage and prolonged efficacy of sensitive darkroom by light exposure