A storage canister with a screw-on lid used for keeping solutions contained within 50mL conical (Falcon) tubes protected from light. Ideal for solutions containing light-sensitive reagents such as imidazole, phenol, and antibiotics (e.g. Ampicillin, Kanamycin, Tetracycline, etc.). Useful in science laboratories that use such tubes and reagents. Cannot be stored in a rack, as it is too large, but it can be stored by itself due to having a flat bottom.

UPDATE 12/Jan/2022:
The length of the canister was increased slightly in order to better match the proportions of the most commonly used 50mL conical tubes (Falcon and Corning). The lid is now easier to twist on as a result.

There are also now three models to choose from, all of which use the same lid.

1. 50mL_conical_darkness_storage_canister_body_balanced-shape_v1.stl: The model I recommend most people print, as it is the most versatile. Compromises between stability, space, and plastic use.
2. 50mL_conical_darkness_storage_canister_body_thin_base_v2.stl: The original model which has a thin base. This model is the most compact and uses the least plastic. It is a bit top-heavy however.
3. 50mL_conical_darkness_storage_canister_body_super-wide_base_v1.stl: This model has an extra wide (8cm diameter) base for tubes you need to remain upright or would like to avoid toppling over.